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organic anion transport

Definition

Target type: biologicalprocess

The directed movement of organic anions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Organic anions are atoms or small molecules with a negative charge which contain carbon in covalent linkage. [GOC:ai, GOC:krc]

Organic anion transport is a fundamental biological process that facilitates the movement of negatively charged molecules across cell membranes. These molecules, known as organic anions, include a wide range of compounds such as bile acids, steroid hormones, drugs, and various metabolic byproducts. The transport of these substances is crucial for maintaining cellular homeostasis, eliminating toxins, and facilitating various metabolic pathways.

Organic anion transport is primarily mediated by a family of membrane proteins known as organic anion transporting polypeptides (OATPs), also referred to as solute carrier family 21 (SLC21) transporters. These proteins are expressed in various tissues, including the liver, kidney, intestine, and brain, reflecting the diverse roles of organic anion transport.

The mechanism of organic anion transport involves a series of steps:

1. **Binding:** The organic anion binds to a specific site on the OATP protein, located on the extracellular side of the cell membrane. This binding event is typically characterized by high affinity and specificity, ensuring that only the appropriate substrate molecules are transported.

2. **Translocation:** Following binding, the OATP protein undergoes a conformational change, facilitating the movement of the bound organic anion across the cell membrane. This movement is typically driven by a concentration gradient or an electrochemical gradient, where the organic anion moves from an area of high concentration to an area of low concentration or from a region of high electrochemical potential to a region of low electrochemical potential.

3. **Release:** Once the organic anion reaches the intracellular side of the cell membrane, it is released from the OATP protein, allowing the transporter to bind another substrate molecule and repeat the cycle.

The transport of organic anions plays a critical role in various physiological processes, including:

* **Bile acid excretion:** OATPs in the liver are essential for the uptake of bile acids from the blood and their subsequent secretion into bile. Bile acids aid in the digestion and absorption of fats.

* **Steroid hormone transport:** OATPs facilitate the uptake of steroid hormones, such as estrogen, testosterone, and cortisol, into target tissues. This process regulates hormone signaling and physiological responses.

* **Drug metabolism and elimination:** Many drugs are organic anions and are transported by OATPs in the liver and kidney. This process is essential for drug detoxification and elimination.

* **Nutrient uptake:** Some OATPs are involved in the uptake of essential nutrients, such as vitamins and amino acids.

* **Cellular detoxification:** OATPs contribute to the detoxification of various harmful compounds, including toxins, pollutants, and reactive oxygen species.

Disruption of organic anion transport can have significant consequences for human health. Mutations or dysfunction of OATP proteins can lead to various diseases, including:

* **Dubin-Johnson syndrome:** This genetic disorder is characterized by impaired bilirubin excretion, leading to jaundice.

* **Rotor syndrome:** A similar disorder to Dubin-Johnson syndrome, but with less severe symptoms.

* **Drug-induced liver injury:** Some drugs can inhibit or interfere with the function of OATPs, leading to drug accumulation and potential liver damage.

In summary, organic anion transport is an intricate and essential biological process that involves the movement of negatively charged molecules across cell membranes. This process is mediated by a family of membrane proteins called OATPs, which play critical roles in various physiological functions, including bile acid excretion, steroid hormone transport, drug metabolism, and cellular detoxification. Disruptions in organic anion transport can have serious consequences for human health, highlighting the importance of understanding this fundamental process.'
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Proteins (12)

ProteinDefinitionTaxonomy
Solute carrier family 22 member 12A solute carrier family 22 member 12 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q96S37]Homo sapiens (human)
Solute carrier organic anion transporter family member 1B1A solute carrier organic anion transporter family member 1B1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9Y6L6]Homo sapiens (human)
Solute carrier family 22 member 7A solute carrier family 22 member 7 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9Y694]Homo sapiens (human)
Broad substrate specificity ATP-binding cassette transporter ABCG2A broad substrate specificity ATP-binding cassette transporter ABCG2 that is encoded in the genome of human. [PRO:WCB, UniProtKB:Q9UNQ0]Homo sapiens (human)
Solute carrier family 22 member 11A solute carrier family 22 member 11 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9NSA0]Homo sapiens (human)
Solute carrier organic anion transporter family member 1B3A solute carrier organic anion transporter family member 1B3 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9NPD5]Homo sapiens (human)
ATP-binding cassette sub-family C member 11An ATP-binding cassette sub-family C member 11 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q96J66]Homo sapiens (human)
Solute carrier family 22 member 6A solute carrier family 22 member 6 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q4U2R8]Homo sapiens (human)
Solute carrier organic anion transporter family member 1A2A solute carrier organic anion transporter family member 1A2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P46721]Homo sapiens (human)
Reduced folate transporterA reduced folate transporter that is encoded in the genome of human. [PRO:DNx, UniProtKB:P41440]Homo sapiens (human)
Solute carrier organic anion transporter family member 2B1 A solute carrier organic anion transporter family member 2B1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:O94956]Homo sapiens (human)
Solute carrier family 22 member 3A solute carrier family 22 member 3 that is encoded in the genome of human. [PRO:DNx, UniProtKB:O75751]Homo sapiens (human)

Compounds (319)

CompoundDefinitionClassesRoles
agmatineAgmatine: Decarboxylated arginine, isolated from several plant and animal sources, e.g., pollen, ergot, herring sperm, octopus muscle.guanidines;
primary amino compound
Escherichia coli metabolite;
mouse metabolite
salicylic acidScalp: The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL).monohydroxybenzoic acidalgal metabolite;
antifungal agent;
antiinfective agent;
EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor;
keratolytic drug;
plant hormone;
plant metabolite
octanoic acidoctanoic acid : A straight-chain saturated fatty acid that is heptane in which one of the hydrogens of a terminal methyl group has been replaced by a carboxy group. Octanoic acid is also known as caprylic acid.

octanoic acid: RN given refers to parent cpd; structure in Merck Index, 9th ed, #1764
medium-chain fatty acid;
straight-chain saturated fatty acid
antibacterial agent;
Escherichia coli metabolite;
human metabolite
hippuric acidhippuric acid: RN given refers to parent cpd; structure in Merck Index, 9th ed, #4591

N-benzoylglycine : An N-acylglycine in which the acyl group is specified as benzoyl.
N-acylglycinehuman blood serum metabolite;
uremic toxin
glutaric acidglutaric acid : An alpha,omega-dicarboxylic acid that is a linear five-carbon dicarboxylic acid.

glutaric acid: RN given refers to parent cpd
alpha,omega-dicarboxylic acid;
dicarboxylic fatty acid
Daphnia magna metabolite;
human metabolite
histaminearalkylamino compound;
imidazoles
human metabolite;
mouse metabolite;
neurotransmitter
uric acid6-hydroxy-1H-purine-2,8(7H,9H)-dione : A tautomer of uric acid having oxo groups at C-2 and C-8 and a hydroxy group at C-6.

7,9-dihydro-1H-purine-2,6,8(3H)-trione : An oxopurine in which the purine ring is substituted by oxo groups at positions 2, 6, and 8.

uric acid : An oxopurine that is the final oxidation product of purine metabolism.

Uric Acid: An oxidation product, via XANTHINE OXIDASE, of oxypurines such as XANTHINE and HYPOXANTHINE. It is the final oxidation product of purine catabolism in humans and primates, whereas in most other mammals URATE OXIDASE further oxidizes it to ALLANTOIN.
uric acidEscherichia coli metabolite;
human metabolite;
mouse metabolite
b 844-39diarylmethane
hoe 33342BXI-72: structure in first sourcebibenzimidazole;
N-methylpiperazine
fluorochrome
p-aminohippuric acidp-aminohippurate : A hippurate that is the conjugate base of p-aminohippuric acid, arising from deprotonation of the carboxy group.

p-aminohippuric acid : An N-acylglycine that is the 4-amino derivative of hippuric acid; used as a diagnostic agent in the measurement of renal plasma flow.

p-Aminohippuric Acid: The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.
N-acylglycineDaphnia magna metabolite
benzbromaronebenzbromarone : 1-Benzofuran substituted at C-2 and C-3 by an ethyl group and a 3,5-dibromo-4-hydroxybenzoyl group respectively. An inhibitor of CYP2C9, it is used as an anti-gout medication.

Benzbromarone: Uricosuric that acts by increasing uric acid clearance. It is used in the treatment of gout.
1-benzofurans;
aromatic ketone
uricosuric drug
beta-naphthoflavonebeta-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the f side of flavone.

beta-Naphthoflavone: A polyaromatic hydrocarbon inducer of P4501A1 and P4501A2 cytochromes. (Proc Soc Exp Biol Med 1994 Dec:207(3):302-308)
extended flavonoid;
naphtho-gamma-pyrone;
organic heterotricyclic compound
aryl hydrocarbon receptor agonist
bithionolbithionol : An aryl sulfide that is diphenyl sulfide in which each phenyl group is substituted at position 2 by hydroxy and at positions 3 and 5 by chlorine. A fungicide and anthelmintic, it was used in various topical drug products for the treatment of liver flukes, but withdrawn after being shown to be a potent photosensitizer with the potential to cause serious skin disorders.

Bithionol: Halogenated anti-infective agent that is used against trematode and cestode infestations.
aryl sulfide;
bridged diphenyl antifungal drug;
bridged diphenyl fungicide;
dichlorobenzene;
organochlorine pesticide;
polyphenol
antifungal agrochemical;
antiplatyhelmintic drug
caffeinepurine alkaloid;
trimethylxanthine
adenosine A2A receptor antagonist;
adenosine receptor antagonist;
adjuvant;
central nervous system stimulant;
diuretic;
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
environmental contaminant;
food additive;
fungal metabolite;
geroprotector;
human blood serum metabolite;
mouse metabolite;
mutagen;
plant metabolite;
psychotropic drug;
ryanodine receptor agonist;
xenobiotic
verapamil2-(3,4-dimethoxyphenyl)-5-{[2-(3,4-dimethoxyphenyl)ethyl](methyl)amino}-2-(propan-2-yl)pentanenitrile : A tertiary amino compound that is 3,4-dimethoxyphenylethylamine in which the hydrogens attached to the nitrogen are replaced by a methyl group and a 4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexyl group.

verapamil : A racemate comprising equimolar amounts of dexverapamil and (S)-verapamil. An L-type calcium channel blocker of the phenylalkylamine class, it is used (particularly as the hydrochloride salt) in the treatment of hypertension, angina pectoris and cardiac arrhythmia, and as a preventive medication for migraine.

Verapamil: A calcium channel blocker that is a class IV anti-arrhythmia agent.
aromatic ether;
nitrile;
polyether;
tertiary amino compound
candesartan cilexetilcandesartan cilexetil: a prodrug which is metabolized to an active form candesartan to exert its biological effectsbiphenyls
chlorambucilchlorambucil : A monocarboxylic acid that is butanoic acid substituted at position 4 by a 4-[bis(2-chloroethyl)amino]phenyl group. A chemotherapy drug that can be used in combination with the antibody obinutuzumab for the treatment of chronic lymphocytic leukemia.

Chlorambucil: A nitrogen mustard alkylating agent used as antineoplastic for chronic lymphocytic leukemia, Hodgkin's disease, and others. Although it is less toxic than most other nitrogen mustards, it has been listed as a known carcinogen in the Fourth Annual Report on Carcinogens (NTP 85-002, 1985). (Merck Index, 11th ed)
aromatic amine;
monocarboxylic acid;
nitrogen mustard;
organochlorine compound;
tertiary amino compound
alkylating agent;
antineoplastic agent;
carcinogenic agent;
drug allergen;
immunosuppressive agent
cimetidinecimetidine : A member of the class of guanidines that consists of guanidine carrying a methyl substituent at position 1, a cyano group at position 2 and a 2-{[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl}ethyl group at position 3. It is a H2-receptor antagonist that inhibits the production of acid in stomach.

Cimetidine: A histamine congener, it competitively inhibits HISTAMINE binding to HISTAMINE H2 RECEPTORS. Cimetidine has a range of pharmacological actions. It inhibits GASTRIC ACID secretion, as well as PEPSIN and GASTRIN output.
aliphatic sulfide;
guanidines;
imidazoles;
nitrile
adjuvant;
analgesic;
anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor
cl 387785CL 387785: structure in first source

N-{4-[(3-bromophenyl)amino]quinazolin-6-yl}but-2-ynamide : A member of the class of quinazolines that is 4,6-diaminoquinazoine in which the one of the hydrogens attached to the amino group at position 4 has been replaced by a m-bromophenyl group while one of the hydrogens attached to the amino group at position 6 has been replaced by a but-2-ynoyl group.
bromobenzenes;
quinazolines;
secondary carboxamide;
ynamide
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
epidermal growth factor receptor antagonist
clofazimineclofazimine : 3-Isopropylimino-3,5-dihydro-phenazine in which the hydrogen at position 5 is substituted substituted by a 4-chlorophenyl group, and that at position 2 is substituted by a (4-chlorophenyl)amino group. A dark red crystalline solid, clofazimine is an antimycobacterial and is one of the main drugs used for the treatment of multi-bacillary leprosy. However, it can cause red/brown discolouration of the skin, so other treatments are often preferred in light-skinned patients.

Clofazimine: A fat-soluble riminophenazine dye used for the treatment of leprosy. It has been used investigationally in combination with other antimycobacterial drugs to treat Mycobacterium avium infections in AIDS patients. Clofazimine also has a marked anti-inflammatory effect and is given to control the leprosy reaction, erythema nodosum leprosum. (From AMA Drug Evaluations Annual, 1993, p1619)
monochlorobenzenes;
phenazines
dye;
leprostatic drug;
non-steroidal anti-inflammatory drug
clonidineclonidine (amino form) : A clonidine that is 4,5-dihydro-1H-imidazol-2-amine in which one of the amino hydrogens is replaced by a 2,6-dichlorophenyl group.

Clonidine: An imidazoline sympatholytic agent that stimulates ALPHA-2 ADRENERGIC RECEPTORS and central IMIDAZOLINE RECEPTORS. It is commonly used in the management of HYPERTENSION.
clonidine;
imidazoline
desipraminedesipramine : A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group.

Desipramine: A tricyclic dibenzazepine compound that potentiates neurotransmission. Desipramine selectively blocks reuptake of norepinephrine from the neural synapse, and also appears to impair serotonin transport. This compound also possesses minor anticholinergic activity, through its affinity to muscarinic receptors.
dibenzoazepine;
secondary amino compound
adrenergic uptake inhibitor;
alpha-adrenergic antagonist;
antidepressant;
cholinergic antagonist;
drug allergen;
EC 3.1.4.12 (sphingomyelin phosphodiesterase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
H1-receptor antagonist;
serotonin uptake inhibitor
diclofenacdiclofenac : A monocarboxylic acid consisting of phenylacetic acid having a (2,6-dichlorophenyl)amino group at the 2-position.

Diclofenac: A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt.
amino acid;
aromatic amine;
dichlorobenzene;
monocarboxylic acid;
secondary amino compound
antipyretic;
drug allergen;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic
diflunisaldiflunisal : An organofluorine compound comprising salicylic acid having a 2,4-difluorophenyl group at the 5-position.

Diflunisal: A salicylate derivative and anti-inflammatory analgesic with actions and side effects similar to those of ASPIRIN.
monohydroxybenzoic acid;
organofluorine compound
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
dipyridamoledipyridamole : A pyrimidopyrimidine that is 2,2',2'',2'''-(pyrimido[5,4-d]pyrimidine-2,6-diyldinitrilo)tetraethanol substituted by piperidin-1-yl groups at positions 4 and 8 respectively. A vasodilator agent, it inhibits the formation of blood clots.

Dipyridamole: A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752)
piperidines;
pyrimidopyrimidine;
tertiary amino compound;
tetrol
adenosine phosphodiesterase inhibitor;
EC 3.5.4.4 (adenosine deaminase) inhibitor;
platelet aggregation inhibitor;
vasodilator agent
etodolacetodolac : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by a 1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl moiety. A preferential inhibitor of cyclo-oxygenase 2 and non-steroidal anti-inflammatory, it is used for the treatment of rheumatoid arthritis and osteoarthritis, and for the alleviation of postoperative pain. Administered as the racemate, only the (S)-enantiomer is active.

Etodolac: A non-steroidal anti-inflammatory agent and cyclooxygenase-2 (COX-2) inhibitor with potent analgesic and anti-arthritic properties. It has been shown to be effective in the treatment of OSTEOARTHRITIS; RHEUMATOID ARTHRITIS; ANKYLOSING SPONDYLITIS; and in the alleviation of postoperative pain (PAIN, POSTOPERATIVE).
monocarboxylic acid;
organic heterotricyclic compound
antipyretic;
cyclooxygenase 2 inhibitor;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
fenofibratePharmavit: a polyvitamin product, comprising vitamins A, D2, B1, B2, B6, C, E, nicotinamide, & calcium pantothene; may be a promising agent for application to human populations exposed to carcinogenic and genetic hazards of ionizing radiation; RN from CHEMLINEaromatic ether;
chlorobenzophenone;
isopropyl ester;
monochlorobenzenes
antilipemic drug;
environmental contaminant;
geroprotector;
xenobiotic
fexofenadinefexofenadine : A piperidine-based anti-histamine compound.

fexofenadine: a second generation antihistamine; metabolite of the antihistaminic drug terfenadine; structure in first source; RN refers to HCl
piperidines;
tertiary amine
anti-allergic agent;
H1-receptor antagonist
flurbiprofenflurbiprofen : A monocarboxylic acid that is a 2-fluoro-[1,1'-biphenyl-4-yl] moiety linked to C-2 of propionic acid. A non-steroidal anti-inflammatory, analgesic and antipyretic, it is used as a pre-operative anti-miotic as well as orally for arthritis or dental pain.

Flurbiprofen: An anti-inflammatory analgesic and antipyretic of the phenylalkynoic acid series. It has been shown to reduce bone resorption in periodontal disease by inhibiting CARBONIC ANHYDRASE.
fluorobiphenyl;
monocarboxylic acid
antipyretic;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
furosemidefurosemide : A chlorobenzoic acid that is 4-chlorobenzoic acid substituted by a (furan-2-ylmethyl)amino and a sulfamoyl group at position 2 and 5 respectively. It is a diuretic used in the treatment of congestive heart failure.

Furosemide: A benzoic-sulfonamide-furan. It is a diuretic with fast onset and short duration that is used for EDEMA and chronic RENAL INSUFFICIENCY.
chlorobenzoic acid;
furans;
sulfonamide
environmental contaminant;
loop diuretic;
xenobiotic
gemfibrozilaromatic etherantilipemic drug
glyburideglyburide : An N-sulfonylurea that is acetohexamide in which the acetyl group is replaced by a 2-(5-chloro-2-methoxybenzamido)ethyl group.

Glyburide: An antidiabetic sulfonylurea derivative with actions like those of chlorpropamide
monochlorobenzenes;
N-sulfonylurea
anti-arrhythmia drug;
EC 2.7.1.33 (pantothenate kinase) inhibitor;
EC 3.6.3.49 (channel-conductance-controlling ATPase) inhibitor;
hypoglycemic agent
gossypolGossypol: A dimeric sesquiterpene found in cottonseed (GOSSYPIUM). The (-) isomer is active as a male contraceptive (CONTRACEPTIVE AGENTS, MALE) whereas toxic symptoms are associated with the (+) isomer.
guanidineguanidine : An aminocarboxamidine, the parent compound of the guanidines.

Guanidine: A strong organic base existing primarily as guanidium ions at physiological pH. It is found in the urine as a normal product of protein metabolism. It is also used in laboratory research as a protein denaturant. (From Martindale, the Extra Pharmacopoeia, 30th ed and Merck Index, 12th ed) It is also used in the treatment of myasthenia and as a fluorescent probe in HPLC.
carboxamidine;
guanidines;
one-carbon compound
ibuprofenMidol: combination of cinnamedrine, phenacetin, aspirin & caffeinemonocarboxylic acidantipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
drug allergen;
environmental contaminant;
geroprotector;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
radical scavenger;
xenobiotic
imipramineimipramine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)propyl group at the nitrogen atom.

Imipramine: The prototypical tricyclic antidepressant. It has been used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders. It has less sedative effect than some other members of this therapeutic group.
dibenzoazepineadrenergic uptake inhibitor;
antidepressant;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
indomethacinindometacin : A member of the class of indole-3-acetic acids that is indole-3-acetic acid in which the indole ring is substituted at positions 1, 2 and 5 by p-chlorobenzoyl, methyl, and methoxy groups, respectively. A non-steroidal anti-inflammatory drug, it is used in the treatment of musculoskeletal and joint disorders including osteoarthritis, rheumatoid arthritis, gout, bursitis and tendinitis.

Indomethacin: A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.
aromatic ether;
indole-3-acetic acids;
monochlorobenzenes;
N-acylindole
analgesic;
drug metabolite;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
gout suppressant;
non-steroidal anti-inflammatory drug;
xenobiotic;
xenobiotic metabolite
itraconazolepiperazines
whi p154WHI P154: an anti-leukemic agent; structure in first source
ketoprofenketoprofen : An oxo monocarboxylic acid that consists of propionic acid substituted by a 3-benzoylphenyl group at position 2.

Ketoprofen: An IBUPROFEN-type anti-inflammatory analgesic and antipyretic. It is used in the treatment of rheumatoid arthritis and osteoarthritis.
benzophenones;
oxo monocarboxylic acid
antipyretic;
drug allergen;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
non-steroidal anti-inflammatory drug;
xenobiotic
lansoprazoleLansoprazole: A 2,2,2-trifluoroethoxypyridyl derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS. Lansoprazole is a racemic mixture of (R)- and (S)-isomers.benzimidazoles;
pyridines;
sulfoxide
anti-ulcer drug;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor
losartanlosartan : A biphenylyltetrazole where a 1,1'-biphenyl group is attached at the 5-position and has an additional trisubstituted imidazol-1-ylmethyl group at the 4'-position

Losartan: An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II.
biphenylyltetrazole;
imidazoles
angiotensin receptor antagonist;
anti-arrhythmia drug;
antihypertensive agent;
endothelin receptor antagonist
mesalaminemesalamine : A monohydroxybenzoic acid that is salicylic acid substituted by an amino group at the 5-position.

Mesalamine: An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed)
amino acid;
aromatic amine;
monocarboxylic acid;
monohydroxybenzoic acid;
phenols
non-steroidal anti-inflammatory drug
mitoxantronemitoxantrone : A dihydroxyanthraquinone that is 1,4-dihydroxy-9,10-anthraquinone which is substituted by 6-hydroxy-1,4-diazahexyl groups at positions 5 and 8.

Mitoxantrone: An anthracenedione-derived antineoplastic agent.
dihydroxyanthraquinoneanalgesic;
antineoplastic agent
nicardipine2-[benzyl(methyl)amino]ethyl methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate : A dihydropyridine that is 1,4-dihydropyridine substituted by a methyl, {2-[benzyl(methyl)amino]ethoxy}carbonyl, 3-nitrophenyl, methoxycarbonyl and methyl groups at positions 2, 3, 4, 5 and 6, respectively.

nicardipine : A racemate comprising equimolar amounts of (R)- and (S)-nicardipine. It is a calcium channel blocker which is used to treat hypertension.

Nicardipine: A potent calcium channel blockader with marked vasodilator action. It has antihypertensive properties and is effective in the treatment of angina and coronary spasms without showing cardiodepressant effects. It has also been used in the treatment of asthma and enhances the action of specific antineoplastic agents.
benzenes;
C-nitro compound;
diester;
dihydropyridine;
methyl ester;
tertiary amino compound
nifedipineNifedipine: A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.C-nitro compound;
dihydropyridine;
methyl ester
calcium channel blocker;
human metabolite;
tocolytic agent;
vasodilator agent
nifekalantamine
nimodipinenimodipine : A dihydropyridine that is 1,4-dihydropyridine which is substituted by methyl groups at positions 2 and 6, a (2-methoxyethoxy)carbonyl group at position 3, a m-nitrophenyl group at position 4, and an isopropoxycarbonyl group at position 5. An L-type calcium channel blocker, it acts particularly on cerebral circulation, and is used both orally and intravenously for the prevention and treatment of subarachnoid hemorrhage from ruptured intracranial aneurysm.

Nimodipine: A calcium channel blockader with preferential cerebrovascular activity. It has marked cerebrovascular dilating effects and lowers blood pressure.
2-methoxyethyl ester;
C-nitro compound;
dicarboxylic acids and O-substituted derivatives;
diester;
dihydropyridine;
isopropyl ester
antihypertensive agent;
calcium channel blocker;
cardiovascular drug;
vasodilator agent
nitrendipinenitrendipine : A dihydropyridine that is 1,4-dihydropyridine substituted by methyl groups at positions 2 and 6, a 3-nitrophenyl group at position 4, a ethoxycarbonyl group at position 3 and a methoxycarbonyl group at position 5. It is a calcium-channel blocker used in the treatment of hypertension.

Nitrendipine: A calcium channel blocker with marked vasodilator action. It is an effective antihypertensive agent and differs from other calcium channel blockers in that it does not reduce glomerular filtration rate and is mildly natriuretic, rather than sodium retentive.
C-nitro compound;
dicarboxylic acids and O-substituted derivatives;
diester;
dihydropyridine;
ethyl ester;
methyl ester
antihypertensive agent;
calcium channel blocker;
geroprotector;
vasodilator agent
omeprazole5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole : A member of the class of benzimidazoles that is 1H-benzimidazole which is substituted by a [4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl group at position 2 and a methoxy group at position 5.

omeprazole : A racemate comprising equimolar amounts of (R)- and (S)-omeprazole.

Omeprazole: A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.
aromatic ether;
benzimidazoles;
pyridines;
sulfoxide
ondansetronOndansetron: A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.carbazoles
pantoprazolepantoprazole : A member of the class of benzimidazoles that is 1H-benzimidazole substituted by a difluoromethoxy group at position 5 and a [(3,4-dimethoxypyridin-2-yl)methyl]sulfinyl group at position 2.

Pantoprazole: 2-pyridinylmethylsulfinylbenzimidazole proton pump inhibitor that is used in the treatment of GASTROESOPHAGEAL REFLUX and PEPTIC ULCER.
aromatic ether;
benzimidazoles;
organofluorine compound;
pyridines;
sulfoxide
anti-ulcer drug;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor;
environmental contaminant;
xenobiotic
pargylinePargyline: A monoamine oxidase inhibitor with antihypertensive properties.aromatic amine
pd 1530354-((3-bromophenyl)amino)-6,7-dimethoxyquinazoline: structure given in first source

PD-153035 : A member of the class of quinazolines carrying a 3-bromophenylamino substituent at position 4 and two methoxy substituents at positions 6 and 7.
aromatic amine;
aromatic ether;
bromobenzenes;
quinazolines;
secondary amino compound
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
epidermal growth factor receptor antagonist
pentamidinepentamidine : A diether consisting of pentane-1,5-diol in which both hydroxyl hydrogens have been replaced by 4-amidinophenyl groups. A trypanocidal drug that is used for treatment of cutaneous leishmaniasis and Chagas disease.

Pentamidine: Antiprotozoal agent effective in trypanosomiasis, leishmaniasis, and some fungal infections; used in treatment of PNEUMOCYSTIS pneumonia in HIV-infected patients. It may cause diabetes mellitus, central nervous system damage, and other toxic effects.
aromatic ether;
carboxamidine;
diether
anti-inflammatory agent;
antifungal agent;
calmodulin antagonist;
chemokine receptor 5 antagonist;
EC 2.3.1.48 (histone acetyltransferase) inhibitor;
NMDA receptor antagonist;
S100 calcium-binding protein B inhibitor;
trypanocidal drug;
xenobiotic
phenacetinSaridon: contains phenacetin, caffeine, propyphenazone & pyrithyldioneacetamides;
aromatic ether
cyclooxygenase 3 inhibitor;
non-narcotic analgesic;
peripheral nervous system drug
phenoxybenzaminePhenoxybenzamine: An alpha-adrenergic antagonist with long duration of action. It has been used to treat hypertension and as a peripheral vasodilator.aromatic amine
prazosinprazosin : A member of the class of piperazines that is piperazine substituted by a furan-2-ylcarbonyl group and a 4-amino-6,7-dimethoxyquinazolin-2-yl group at positions 1 and 4 respectively.

Prazosin: A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.
aromatic ether;
furans;
monocarboxylic acid amide;
piperazines;
quinazolines
alpha-adrenergic antagonist;
antihypertensive agent;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
probenecidprobenecid : A sulfonamide in which the nitrogen of 4-sulfamoylbenzoic acid is substituted with two propyl groups.

Probenecid: The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy.
benzoic acids;
sulfonamide
uricosuric drug
procainamideprocainamide : A benzamide that is 4-aminobenzamide substituted on the amide N by a 2-(diethylamino)ethyl group. It is a pharmaceutical antiarrhythmic agent used for the medical treatment of cardiac arrhythmias.

Procainamide: A class Ia antiarrhythmic drug that is structurally-related to PROCAINE.
benzamidesanti-arrhythmia drug;
platelet aggregation inhibitor;
sodium channel blocker
rabeprazoleRabeprazole: A 4-(3-methoxypropoxy)-3-methylpyridinyl derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.benzimidazoles;
pyridines;
sulfoxide
anti-ulcer drug;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor
aurinaurin: structurediarylmethane
imatinibaromatic amine;
benzamides;
N-methylpiperazine;
pyridines;
pyrimidines
antineoplastic agent;
apoptosis inducer;
tyrosine kinase inhibitor
sulfasalazinesulfasalazine : An azobenzene consisting of diphenyldiazene having a carboxy substituent at the 4-position, a hydroxy substituent at the 3-position and a 2-pyridylaminosulphonyl substituent at the 4'-position.

Sulfasalazine: A drug that is used in the management of inflammatory bowel diseases. Its activity is generally considered to lie in its metabolic breakdown product, 5-aminosalicylic acid (see MESALAMINE) released in the colon. (From Martindale, The Extra Pharmacopoeia, 30th ed, p907)
sulfinpyrazoneSulfinpyrazone: A uricosuric drug that is used to reduce the serum urate levels in gout therapy. It lacks anti-inflammatory, analgesic, and diuretic properties.pyrazolidines;
sulfoxide
uricosuric drug
tetraethylammoniumTetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90)quaternary ammonium ion
thioridazinethioridazine : A phenothiazine derivative having a methylsulfanyl subsitituent at the 2-position and a (1-methylpiperidin-2-yl)ethyl] group at the N-10 position.

Thioridazine: A phenothiazine antipsychotic used in the management of PHYCOSES, including SCHIZOPHRENIA.
phenothiazines;
piperidines
alpha-adrenergic antagonist;
dopaminergic antagonist;
EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
first generation antipsychotic;
H1-receptor antagonist;
serotonergic antagonist
delavirdinedelavirdine : The amide resulting from the formal condensation of 5-[(methylsulfonyl)amino]-1H-indole-2-carboxylic acid and 4-amino group of 1-[3-(isopropylamino)pyridin-2-yl]piperazine, delavirdine is a non-nucleoside reverse transcriptase inhibitor with activity specific for HIV-1. Viral resistance emerges rapidly when delavirdine is used alone, so it is therefore used (as the methanesulfonic acid salt) with other antiretrovirals for combination therapy of HIV infection.

Delavirdine: A potent, non-nucleoside reverse transcriptase inhibitor with activity specific for HIV-1.
aminopyridine;
indolecarboxamide;
N-acylpiperazine;
sulfonamide
antiviral drug;
HIV-1 reverse transcriptase inhibitor
corticosterone11beta-hydroxy steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(4) steroid;
C21-steroid;
glucocorticoid;
primary alpha-hydroxy ketone
human metabolite;
mouse metabolite
reserpinereserpine : An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria.

Reserpine: An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria. Reserpine inhibits the uptake of norepinephrine into storage vesicles resulting in depletion of catecholamines and serotonin from central and peripheral axon terminals. It has been used as an antihypertensive and an antipsychotic as well as a research tool, but its adverse effects limit its clinical use.
alkaloid ester;
methyl ester;
yohimban alkaloid
adrenergic uptake inhibitor;
antihypertensive agent;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
environmental contaminant;
first generation antipsychotic;
plant metabolite;
xenobiotic
cephaloridinecefaloridine : A cephalosporin compound having pyridinium-1-ylmethyl and 2-thienylacetamido side-groups. A first-generation semisynthetic derivative of cephalosporin C.

Cephaloridine: A cephalosporin antibiotic.
beta-lactam antibiotic allergen;
cephalosporin;
semisynthetic derivative
antibacterial drug
thyroxinethyroxine : An iodothyronine compound having iodo substituents at the 3-, 3'-, 5- and 5'-positions.

Thyroxine: The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.
2-halophenol;
iodophenol;
L-phenylalanine derivative;
non-proteinogenic L-alpha-amino acid;
thyroxine;
thyroxine zwitterion
antithyroid drug;
human metabolite;
mouse metabolite;
thyroid hormone
estroneHydroxyestrones: Estrone derivatives substituted with one or more hydroxyl groups in any position. They are important metabolites of estrone and other estrogens.17-oxo steroid;
3-hydroxy steroid;
phenolic steroid;
phenols
antineoplastic agent;
bone density conservation agent;
estrogen;
human metabolite;
mouse metabolite
triiodothyronine3,3',5-triiodo-L-thyronine : An iodothyronine compound having iodo substituents at the 3-, 3'- and 5-positions. Although some is produced in the thyroid, most of the 3,3',5-triiodo-L-thyronine in the body is generated by mono-deiodination of L-thyroxine in the peripheral tissues. Its metabolic activity is about 3 to 5 times that of L-thyroxine. The sodium salt is used in the treatment of hypothyroidism.

Triiodothyronine: A T3 thyroid hormone normally synthesized and secreted by the thyroid gland in much smaller quantities than thyroxine (T4). Most T3 is derived from peripheral monodeiodination of T4 at the 5' position of the outer ring of the iodothyronine nucleus. The hormone finally delivered and used by the tissues is mainly T3.
2-halophenol;
amino acid zwitterion;
iodophenol;
iodothyronine
human metabolite;
mouse metabolite;
thyroid hormone
vincristineacetate ester;
formamides;
methyl ester;
organic heteropentacyclic compound;
organic heterotetracyclic compound;
tertiary alcohol;
tertiary amino compound;
vinca alkaloid
antineoplastic agent;
drug;
microtubule-destabilising agent;
plant metabolite;
tubulin modulator
cephalothincefalotin : A semisynthetic, first-generation cephalosporin antibiotic with acetoxymethyl and (2-thienylacetyl)nitrilo moieties at positions 3 and 7, respectively, of the core structure. Administered parenterally during surgery and to treat a wide spectrum of blood infections.

Cephalothin: A cephalosporin antibiotic.
azabicycloalkene;
beta-lactam antibiotic allergen;
carboxylic acid;
cephalosporin;
semisynthetic derivative;
thiophenes
antibacterial drug;
antimicrobial agent
colchicine(S)-colchicine : A colchicine that has (S)-configuration. It is a secondary metabolite, has anti-inflammatory properties and is used to treat gout, crystal-induced joint inflammation, familial Mediterranean fever, and many other conditions.alkaloid;
colchicine
anti-inflammatory agent;
gout suppressant;
mutagen
sulfobromophthalein sodiumbromosulfophthalein : An organosulfonic acid that consists of phthalide bearing four bromo substituents at positions 4, 5, 6 and 7 as well as two 4-hydroxy-3-sulfophenyl groups both located at position 1.

bromosulfophthalein sodium : An organic sodium salt that is the disodium salt of bromosulfophthalein.
organic sodium saltdye
taurocholic acidtaurocholate : An organosulfonate oxoanion that is the conjugate base of taurocholic acid.

taurocholic acid : A bile acid taurine conjugate of cholic acid that usually occurs as the sodium salt of bile in mammals.

Taurocholic Acid: The product of conjugation of cholic acid with taurine. Its sodium salt is the chief ingredient of the bile of carnivorous animals. It acts as a detergent to solubilize fats for absorption and is itself absorbed. It is used as a cholagogue and cholerectic.
amino sulfonic acid;
bile acid taurine conjugate
human metabolite
1,3-benzodioxole1,3-benzodioxole : A benzodioxole consisting of a benzene ring substituted by a the methylenedioxy group.benzodioxole
glycyrrhetinic acidcyclic terpene ketone;
hydroxy monocarboxylic acid;
pentacyclic triterpenoid
immunomodulator;
plant metabolite
salicyluratesalicylurate : A monocarboxylic acid anion that is the conjugate base of salicyluric acid, obtained by deprotonation of the carboxy group; major species at pH 7.3.

salicylurate: RN given refers to parent cpd

salicyluric acid : An N-acylglycine in which the acyl group is specified as 2-hydroxybenzoyl.
N-acylglycine;
secondary carboxamide
human xenobiotic metabolite;
uremic toxin
indicanindoxyl sulfate : An aryl sulfate that is indoxyl in which the hydroxyl hydrogen is substituted by a sulfo group.aryl sulfate;
indoles
human metabolite
abietic acidabietic acid : An abietane diterpenoid that is abieta-7,13-diene substituted by a carboxy group at position 18.abietane diterpenoid;
monocarboxylic acid
plant metabolite
flavoneflavone : The simplest member of the class of flavones that consists of 4H-chromen-4-one bearing a phenyl substituent at position 2.

flavone: RN given refers to unlabeled cpd; structure given in first source
flavonesmetabolite;
nematicide
2,2-dimethylbutyric acid2,2-dimethylbutyric acid : A branched-chain fatty acid and metabolite of the lactone prodrug simvastatin, whose sodium salt is potentially useful for the treatment of thalassaemias and haemoglobinopathies.

2,2-dimethylbutyric acid: structure given in first source; plasma metabolite of simvastatin
dimethylbutyric acidmetabolite
alpha-naphthoflavonealpha-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the h side of flavone. A synthetic compound, it is an inhibitor of aromatase (EC 1.14.14.14).

alpha-naphthoflavone: inhibits P4501A1 and P4501A2; stimulates some activities of P4503A4
extended flavonoid;
naphtho-gamma-pyrone;
organic heterotricyclic compound
aryl hydrocarbon receptor agonist;
aryl hydrocarbon receptor antagonist;
EC 1.14.14.14 (aromatase) inhibitor
indoxyl acetateindoles
dehydroepiandrosterone sulfatedehydroepiandrosterone sulfate : A steroid sulfate that is the 3-sulfooxy derivative of dehydroepiandrosterone.

Dehydroepiandrosterone Sulfate: The circulating form of a major C19 steroid produced primarily by the ADRENAL CORTEX. DHEA sulfate serves as a precursor for TESTOSTERONE; ANDROSTENEDIONE; ESTRADIOL; and ESTRONE.
17-oxo steroid;
steroid sulfate
EC 2.7.1.33 (pantothenate kinase) inhibitor;
human metabolite;
mouse metabolite
vinblastine
antimycin abenzamides;
formamides;
macrodiolide;
phenols
antifungal agent;
mitochondrial respiratory-chain inhibitor;
piscicide
glycyrrhizic acidglycyrrhizinic acid : A triterpenoid saponin that is the glucosiduronide derivative of 3beta-hydroxy-11-oxoolean-12-en-30-oic acid.enone;
glucosiduronic acid;
pentacyclic triterpenoid;
tricarboxylic acid;
triterpenoid saponin
EC 3.4.21.5 (thrombin) inhibitor;
plant metabolite
phenylguanidinephenylguanidine: RN given refers to parent cpd
hydroxyzine pamoatepiperazinium salt
daunorubicinanthracycline : Anthracyclines are polyketides that have a tetrahydronaphthacenedione ring structure attached by a glycosidic linkage to the amino sugar daunosamine.

daunorubicin : A natural product found in Actinomadura roseola.

Daunorubicin: A very toxic anthracycline aminoglycoside antineoplastic isolated from Streptomyces peucetius and others, used in treatment of LEUKEMIA and other NEOPLASMS.
aminoglycoside antibiotic;
anthracycline;
p-quinones;
tetracenequinones
antineoplastic agent;
bacterial metabolite
silybinsilibinin : A flavonolignan isolated from milk thistle, Silybum marianum, that has been shown to exhibit antioxidant and antineoplastic activities.aromatic ether;
benzodioxine;
flavonolignan;
polyphenol;
secondary alpha-hydroxy ketone
antineoplastic agent;
antioxidant;
hepatoprotective agent;
plant metabolite
cefazolincefazolin : A first-generation cephalosporin compound having [(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl and (1H-tetrazol-1-ylacetyl)amino side-groups at positions 3 and 7 respectively.

Cefazolin: A semisynthetic cephalosporin analog with broad-spectrum antibiotic action due to inhibition of bacterial cell wall synthesis. It attains high serum levels and is excreted quickly via the urine.
beta-lactam antibiotic allergen;
cephalosporin;
tetrazoles;
thiadiazoles
antibacterial drug
zidovudinezidovudine : A pyrimidine 2',3'-dideoxyribonucleoside compound having a 3'-azido substituent and thymine as the nucleobase.

Zidovudine: A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by an azido group. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. The compound is a potent inhibitor of HIV replication, acting as a chain-terminator of viral DNA during reverse transcription. It improves immunologic function, partially reverses the HIV-induced neurological dysfunction, and improves certain other clinical abnormalities associated with AIDS. Its principal toxic effect is dose-dependent suppression of bone marrow, resulting in anemia and leukopenia.
azide;
pyrimidine 2',3'-dideoxyribonucleoside
antimetabolite;
antiviral drug;
HIV-1 reverse transcriptase inhibitor
paclitaxelTaxus: Genus of coniferous yew trees or shrubs, several species of which have medicinal uses. Notable is the Pacific yew, Taxus brevifolia, which is used to make the anti-neoplastic drug taxol (PACLITAXEL).taxane diterpenoid;
tetracyclic diterpenoid
antineoplastic agent;
human metabolite;
metabolite;
microtubule-stabilising agent
etoposidebeta-D-glucoside;
furonaphthodioxole;
organic heterotetracyclic compound
antineoplastic agent;
DNA synthesis inhibitor
cephradinecephradine : A first-generation cephalosporin antibiotic with a methyl substituent at position 3, and a (2R)-2-amino-2-cyclohexa-1,4-dien-1-ylacetamido substituent at position 7, of the cephem skeleton.

Cephradine: A semi-synthetic cephalosporin antibiotic.
beta-lactam antibiotic allergen;
cephalosporin
antibacterial drug
diltiazemdiltiazem : A 5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate in which both stereocentres have S configuration. A calcium-channel blocker and vasodilator, it is used as the hydrochloride in the management of angina pectoris and hypertension.

Diltiazem: A benzothiazepine derivative with vasodilating action due to its antagonism of the actions of CALCIUM ion on membrane functions.
5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetateantihypertensive agent;
calcium channel blocker;
vasodilator agent
1-methyl-4-phenylpyridinium1-Methyl-4-phenylpyridinium: An active neurotoxic metabolite of 1-METHYL-4-PHENYL-1,2,3,6-TETRAHYDROPYRIDINE. The compound reduces dopamine levels, inhibits the biosynthesis of catecholamines, depletes cardiac norepinephrine and inactivates tyrosine hydroxylase. These and other toxic effects lead to cessation of oxidative phosphorylation, ATP depletion, and cell death. The compound, which is related to PARAQUAT, has also been used as an herbicide.

N-methyl-4-phenylpyridinium : A pyridinium ion that is N-methylpyridinium having a phenyl substituent at the 4-position.
pyridinium ionapoptosis inducer;
herbicide;
human xenobiotic metabolite;
neurotoxin
mefloquine(-)-(11S,2'R)-erythro-mefloquine : An optically active form of [2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol having (-)-(11S,2'R)-erythro-configuration. An antimalarial agent, used in racemic form, which acts as a blood schizonticide; its mechanism of action is unknown.[2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanolantimalarial
cefoperazonecefoperazone : A semi-synthetic parenteral cephalosporin with a tetrazolyl moiety that confers beta-lactamase resistance.

Cefoperazone: Semisynthetic broad-spectrum cephalosporin with a tetrazolyl moiety that is resistant to beta-lactamase. It may be used to treat Pseudomonas infections.
cephalosporinantibacterial drug
cefadroxil anhydrouscefadroxil : A cephalosporin bearing methyl and (2R)-2-amino-2-(4-hydroxyphenyl)acetamido groups at positions 3 and 7, respectively, of the cephem skeleton.

Cefadroxil: Long-acting, broad-spectrum, water-soluble, CEPHALEXIN derivative.
cephalosporinantibacterial drug
lovastatinlovastatin : A fatty acid ester that is mevastatin carrying an additional methyl group on the carbobicyclic skeleton. It is used in as an anticholesteremic drug and has been found in fungal species such as Aspergillus terreus and Pleurotus ostreatus (oyster mushroom).

Lovastatin: A fungal metabolite isolated from cultures of Aspergillus terreus. The compound is a potent anticholesteremic agent. It inhibits 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It also stimulates the production of low-density lipoprotein receptors in the liver.
delta-lactone;
fatty acid ester;
hexahydronaphthalenes;
polyketide;
statin (naturally occurring)
anticholesteremic drug;
antineoplastic agent;
Aspergillus metabolite;
prodrug
simvastatinsimvastatin : A member of the class of hexahydronaphthalenes that is lovastatin in which the 2-methylbutyrate ester moiety has been replaced by a 2,2-dimethylbutyrate ester group. It is used as a cholesterol-lowering and anti-cardiovascular disease drug.

Simvastatin: A derivative of LOVASTATIN and potent competitive inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It may also interfere with steroid hormone production. Due to the induction of hepatic LDL RECEPTORS, it increases breakdown of LDL CHOLESTEROL.
delta-lactone;
fatty acid ester;
hexahydronaphthalenes;
statin (semi-synthetic)
EC 1.1.1.34/EC 1.1.1.88 (hydroxymethylglutaryl-CoA reductase) inhibitor;
EC 3.4.24.83 (anthrax lethal factor endopeptidase) inhibitor;
ferroptosis inducer;
geroprotector;
prodrug
pravastatinpravastatin : A carboxylic ester resulting from the formal condensation of (S)-2-methylbutyric acid with the hydroxy group adjacent to the ring junction of (3R,5R)-7-[(1S,2S,6S,8S,8aR)-6,8-dihydroxy-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoic acid. Derived from microbial transformation of mevastatin, pravastatin is a reversible inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA). The sodium salt is used for lowering cholesterol and preventing cardiovascular disease. It is one of the lower potency statins, but has the advantage of fewer side effects compared with lovastatin and simvastatin.

Pravastatin: An antilipemic fungal metabolite isolated from cultures of Nocardia autotrophica. It acts as a competitive inhibitor of HMG CoA reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES).
3-hydroxy carboxylic acid;
carbobicyclic compound;
carboxylic ester;
hydroxy monocarboxylic acid;
secondary alcohol;
statin (semi-synthetic)
anticholesteremic drug;
environmental contaminant;
metabolite;
xenobiotic
adefoviradefovir : A member of the class of phosphonic acids that is methylphosphonic acid in which one of the methyl hydrogens has been replaced by a 2-(6-amino-9H-purin-9-yl)ethoxy group. An inhibitor of HIV-1 reverse transcriptase, the bis(t-butoxycarbonyloxymethyl) ester (dipivoxil ester) prodrug is used to treat chronic hepatitis B viral infection.

adefovir: inhibitor of African swine fever virus

adefovir(1-) : A organophosphonate oxoanion obtained by removal of a proton from the phosphonate group of adefovir, a nucleoside reverse transcriptase inhibitor. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.).
6-aminopurines;
ether;
phosphonic acids
antiviral drug;
DNA synthesis inhibitor;
drug metabolite;
HIV-1 reverse transcriptase inhibitor;
nephrotoxic agent
cidofovir anhydrouscidofovir anhydrous : Cytosine substituted at the 1 position by a 3-hydroxy-2-(phosphonomethoxy)propyl group (S configuration). A nucleoside analogue, it is an injectable antiviral used for the treatment of cytomegalovirus (CMV) retinitis in AIDS patients.

Cidofovir: An acyclic nucleoside phosphonate that acts as a competitive inhibitor of viral DNA polymerases. It is used in the treatment of RETINITIS caused by CYTOMEGALOVIRUS INFECTIONS and may also be useful for treating HERPESVIRUS INFECTIONS.
phosphonic acids;
pyrimidone
anti-HIV agent;
antineoplastic agent;
antiviral drug;
photosensitizing agent
topotecantopotecan : A pyranoindolizinoquinoline used as an antineoplastic agent. It is a derivative of camptothecin and works by binding to the topoisomerase I-DNA complex and preventing religation of these 328 single strand breaks.

Topotecan: An antineoplastic agent used to treat ovarian cancer. It works by inhibiting DNA TOPOISOMERASES, TYPE I.
pyranoindolizinoquinolineantineoplastic agent;
EC 5.99.1.2 (DNA topoisomerase) inhibitor
atorvastatin calcium anhydrousorganic calcium salt
atorvastatinaromatic amide;
dihydroxy monocarboxylic acid;
monofluorobenzenes;
pyrroles;
statin (synthetic)
environmental contaminant;
xenobiotic
irinotecancarbamate ester;
delta-lactone;
N-acylpiperidine;
pyranoindolizinoquinoline;
ring assembly;
tertiary alcohol;
tertiary amino compound
antineoplastic agent;
apoptosis inducer;
EC 5.99.1.2 (DNA topoisomerase) inhibitor;
prodrug
adefovir dipivoxiladefovir pivoxil : An organic phosphonate that is the dipivoxil ester of adefovir. A prodrug for adefovir, an HIV-1 reverse transcriptase inhibitor, adefovir pivoxil is used to treat chronic hepatitis B viral infection.

bis(pivaloyloxymethyl)-9-(2-phosphonylmethoxyethyl)adenine: structure given in first source
6-aminopurines;
carbonate ester;
ether;
organic phosphonate
antiviral drug;
DNA synthesis inhibitor;
HIV-1 reverse transcriptase inhibitor;
nephrotoxic agent;
prodrug
efavirenzefavirenz : 1,4-Dihydro-2H-3,1-benzoxazin-2-one substituted at the 4 position by cyclopropylethynyl and trifluoromethyl groups (S configuration) and at the 6 position by chlorine. A non-nucleoside reverse transcriptase inhibitor with activity against HIV, it is used with other antiretrovirals for combination therapy of HIV infection.

efavirenz: HIV-1 reverse transcriptase inhibitor
acetylenic compound;
benzoxazine;
cyclopropanes;
organochlorine compound;
organofluorine compound
antiviral drug;
HIV-1 reverse transcriptase inhibitor
nelfinavirnelfinavir : An aryl sulfide that is used (as its mesylate salt) for treatment of HIV and also exhibits some anticancer properties.

Nelfinavir: A potent HIV protease inhibitor. It is used in combination with other antiviral drugs in the treatment of HIV in both adults and children.
aryl sulfide;
benzamides;
organic heterobicyclic compound;
phenols;
secondary alcohol;
tertiary amino compound
antineoplastic agent;
HIV protease inhibitor
rolofyllinerolofylline: selective antagonist for adenosine receptors; a cardiovascular agentoxopurine
simvastatin acidsimvastatin acid: structure given in first sourcecarbonyl compound
l 154819mevinolinic acid : A polyketide obtained by hydrolysis of the pyranone ring of lovastatin.

mevinolinic acid: RN given refers to parent cpd; structure given in first source
carbobicyclic compound;
dihydroxy monocarboxylic acid;
fatty acid ester;
polyketide
Aspergillus metabolite;
drug metabolite;
EC 1.1.1.34/EC 1.1.1.88 (hydroxymethylglutaryl-CoA reductase) inhibitor;
teratogenic agent
ursolic acidhydroxy monocarboxylic acid;
pentacyclic triterpenoid
geroprotector;
plant metabolite
amprenavircarbamate ester;
sulfonamide;
tetrahydrofuryl ester
antiviral drug;
HIV protease inhibitor
telmisartantelmisartan : A member of the class of benzimidazoles used widely in the treatment of hypertension.

Telmisartan: A biphenyl compound and benzimidazole derivative that acts as an angiotensin II type 1 receptor antagonist. It is used in the management of HYPERTENSION.
benzimidazoles;
biphenyls;
carboxybiphenyl
angiotensin receptor antagonist;
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
environmental contaminant;
xenobiotic
tangeretinpentamethoxyflavone : A methoxyflavone that is flavone substituted by a five methoxy groups.

tangeretin : A pentamethoxyflavone flavone with methoxy groups at positions 4', 5, 6 , 7 and 8.

tangeretin: structure given in first source; from citrus plants; inhibits invasion of MO4 mouse cells into embryonic chick heart in vitro
pentamethoxyflavoneantineoplastic agent;
plant metabolite
metiprenalinemetiprenaline: RN given refers to parent cpd
betamipronorganonitrogen compound;
organooxygen compound
nobiletinnobiletin : A methoxyflavone that is flavone substituted by methoxy groups at positions 5, 6, 7, 8, 3' and 4' respectively.methoxyflavoneantineoplastic agent;
plant metabolite
nonoxynol-9tergitol NP-9 : A tergitol polymer consisting of nonylbenzene with a nine-membered poly(ethylene glycol) moiety attached at position 4.tergitolcontraceptive drug;
nonionic surfactant
vexibinolsophoraflavanone G : A tetrahydroxyflavanone having a structure of naringenin bearing an additional hydroxyl substituent at position 2' as well as a (2R)-5-methyl-2-(prop-1-en-2-yl)hex-4-en-1-yl (lavandulyl) substituent at position 8'.

vexibinol: flavanol from Sophora; structure in first source; RN given refers to (S-(R*,S*))-isomer
(2S)-flavan-4-one;
4'-hydroxyflavanones;
tetrahydroxyflavanone
antimalarial;
antimicrobial agent;
antioxidant;
plant metabolite
lobaric acidlobaric acid: inhibits formation of leukotrienes C4, D4, and E4; also reduces muscle contraction; structure in first sourcecarbonyl compound
pinostrobinmonohydroxyflavanone;
monomethoxyflavanone
antidote;
plant metabolite
hederagenindihydroxy monocarboxylic acid;
pentacyclic triterpenoid;
sapogenin
plant metabolite
glucosaminic acid2-amino-2-deoxy-D-gluconic acid : Hexanoic acid with four hydroxy groups at C-3, C-4, C-5, C-6, and an amino group at C-2.

glucosaminic acid: RN given refers to cpd with unspecified isomeric designation
amino acid zwitterion;
gluconic acid derivative
bacterial metabolite
atovaquoneatovaquone : A naphthoquinone compound having a 4-(4-chlorophenyl)cyclohexyl group at the 2-position and a hydroxy substituent at the 3-position.

Atovaquone: A hydroxynaphthoquinone that has antimicrobial activity and is being used in antimalarial protocols.
hydroxy-1,2-naphthoquinone
clarithromycinclarithromycin : The 6-O-methyl ether of erythromycin A, clarithromycin is a macrolide antibiotic used in the treatment of respiratory-tract, skin and soft-tissue infections. It is also used to eradicate Helicobacter pylori in the treatment of peptic ulcer disease. It prevents bacteria from growing by interfering with their protein synthesis.

Clarithromycin: A semisynthetic macrolide antibiotic derived from ERYTHROMYCIN that is active against a variety of microorganisms. It can inhibit PROTEIN SYNTHESIS in BACTERIA by reversibly binding to the 50S ribosomal subunits. This inhibits the translocation of aminoacyl transfer-RNA and prevents peptide chain elongation.
macrolide antibioticantibacterial drug;
environmental contaminant;
protein synthesis inhibitor;
xenobiotic
4-methylumbelliferyl sulfate4-methylumbelliferone sulfate : A member of the class of coumarins that is umbelliferone sulfate which carries a methyl group at position 4. It is a metabolite of 4-methylumbelliferone.

4-methylumbelliferyl sulfate: RN given refers to parent cpd
aryl sulfate;
coumarins
human xenobiotic metabolite
5,7-dimethoxyflavonechrysin 5,7-dimethyl ether : A dimethoxyflavone that is the 5,7-dimethyl ether derivative of chrysin.dimethoxyflavoneplant metabolite
sarsasapogeninsapogenin
lopinaviramphetamines;
dicarboxylic acid diamide
anticoronaviral agent;
antiviral drug;
HIV protease inhibitor
3,5,7,3',4'-pentamethoxyflavone3,5,7,3',4'-pentamethoxyflavone: causes relaxation of cavernosum; structure in first source
6-methoxyflavanone6-methoxyflavanone: structure in first source
effusoleffusol: from the pith of Juncus effusus L.; structure in first source
sn 38SN-38 : A member of the class of pyranoindolizinoquinolines that is (4S)-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-dione bearing two additional ethyl substituents at positions 4 and 11 as well as two additional hydroxy substituents at positions 4 and 9. It is the active metabolite of irinotecan and is ~1000 times more active than irinotecan itself.delta-lactone;
phenols;
pyranoindolizinoquinoline;
tertiary alcohol
antineoplastic agent;
apoptosis inducer;
drug metabolite;
EC 5.99.1.2 (DNA topoisomerase) inhibitor
epicatechin gallate(-)-epicatechin-3-O-gallate : A gallate ester obtained by formal condensation of the carboxy group of gallic acid with the (3R)-hydroxy group of epicatechin. A natural product found in Parapiptadenia rigida.

epicatechin gallate: a steroid 5alpha-reductase inhibitor; RN given refers to the (cis)-isomer; structure given in first source; isolated from green tea
catechin;
gallate ester;
polyphenol
EC 3.2.1.1 (alpha-amylase) inhibitor;
EC 3.2.1.20 (alpha-glucosidase) inhibitor;
metabolite
dioscinhexacyclic triterpenoid;
spiroketal;
spirostanyl glycoside;
trisaccharide derivative
anti-inflammatory agent;
antifungal agent;
antineoplastic agent;
antiviral agent;
apoptosis inducer;
EC 1.14.18.1 (tyrosinase) inhibitor;
hepatoprotective agent;
metabolite
elacridarElacridar: inhibitor of MDR1 PROTEIN; structure given in first source
s-(2-benzothiazolyl)cysteineS-(2-benzothiazolyl)cysteine: RN given refers to (L)-isomer; structure given in first source
cyclic-1-(3-hydroxy-2-phosphonylmethoxypropyl)cytosinecyclic-1-(3-hydroxy-2-phosphonylmethoxypropyl)cytosine: prodrug for HPMPC; specific name and structure not given in first source
gefitinibaromatic ether;
monochlorobenzenes;
monofluorobenzenes;
morpholines;
quinazolines;
secondary amino compound;
tertiary amino compound
antineoplastic agent;
epidermal growth factor receptor antagonist
3-carboxy-4-methyl-5-propyl-2-furanpropionic acid2-(2-carboxyethyl)-4-methyl-5-propylfuran-3-carboxylic acid : A furoic acid that is furan-3-carboxylic acid substituted by a methyl group at position 4, a propyl group at position 5 and a 2-carboxyethyl group at position 2. It is a potent uremic toxin that has been found to accumulate in human serum of patients with chronic kidney diseases.

3-carboxy-4-methyl-5-propyl-2-furanpropionic acid: structure in first source
dicarboxylic acid;
furoic acid
human metabolite;
uremic toxin
methotrexatedicarboxylic acid;
monocarboxylic acid amide;
pteridines
abortifacient;
antimetabolite;
antineoplastic agent;
antirheumatic drug;
dermatologic drug;
DNA synthesis inhibitor;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor;
immunosuppressive agent
olmesartan medoxomilOlmesartan Medoxomil: An ANGIOTENSIN II TYPE 1 RECEPTOR BLOCKER that is used to manage HYPERTENSION.biphenyls
febuxostatfebuxostat : A 1,3-thiazolemonocarboxylic acid that is 4-methyl-1,3-thiazole-5-carboxylic acid which is substituted by a 3-cyano-4-(2-methylpropoxy)phenyl group at position 2. It is an orally-active, potent, and selective xanthine oxidase inhibitor used for the treatment of chronic hyperuricaemia in patients with gout.

Febuxostat: A thiazole derivative and inhibitor of XANTHINE OXIDASE that is used for the treatment of HYPERURICEMIA in patients with chronic GOUT.
1,3-thiazolemonocarboxylic acid;
aromatic ether;
nitrile
EC 1.17.3.2 (xanthine oxidase) inhibitor
sinensetinsinensetin : A pentamethoxyflavone that is flavone substituted by methoxy groups at positions 5, 6, 7, 3' and 4' respectively.

sinensetin: isolated from citrus fruit; exhibit antiadhesive action on platelets
pentamethoxyflavoneplant metabolite
3-methoxyflavone3-methoxyflavone: from Aspergillus niger; structure in first source
6-methoxyflavone6-methoxyflavone: suppresses NFAT-mediated T cell activation; structure in first sourceether;
flavonoids
10-propargyl-10-deazaaminopterin10-propargyl-10-deazaaminopterin: structure in first source

pralatrexate : A pteridine that is the N-4-[1-(2,4-diaminopteridin-6-yl)pent-4-yn-2-yl]benzoyl derivative of L-glutamic acid. Used for treatment of Peripheral T-Cell Lymphoma, an aggressive form of non-Hodgkins lymphoma.
N-acyl-L-glutamic acid;
pteridines;
terminal acetylenic compound
antimetabolite;
antineoplastic agent;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor
atazanaviratazanavir : A heavily substituted carbohydrazide that is an antiretroviral drug of the protease inhibitor (PI) class used to treat infection of human immunodeficiency virus (HIV).carbohydrazideantiviral drug;
HIV protease inhibitor
ym 872YM 872: structure in first source
tariquidarbenzamides
3,3',4',5,6,7,8-heptamethoxyflavone3,3',4',5,6,7,8-heptamethoxyflavone: has anti-inflammatory activity; isolated from citrus fruit; exhibit antiadhesive action on plateletsether;
flavonoids
4-hydroxyhippuric acidp-hydroxyhippuric acid : An N-acylglycine that is the 4-hydroxy derivative of hippuric acid.N-acylglycinehuman blood serum metabolite
naproxennaproxen : A methoxynaphthalene that is 2-methoxynaphthalene substituted by a carboxy ethyl group at position 6. Naproxen is a non-steroidal anti-inflammatory drug commonly used for the reduction of pain, fever, inflammation and stiffness caused by conditions such as osteoarthritis, kidney stones, rheumatoid arthritis, psoriatic arthritis, gout, ankylosing spondylitis, menstrual cramps, tendinitis, bursitis, and for the treatment of primary dysmenorrhea. It works by inhibiting both the COX-1 and COX-2 enzymes.

Naproxen: An anti-inflammatory agent with analgesic and antipyretic properties. Both the acid and its sodium salt are used in the treatment of rheumatoid arthritis and other rheumatic or musculoskeletal disorders, dysmenorrhea, and acute gout.
methoxynaphthalene;
monocarboxylic acid
antipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
drug allergen;
environmental contaminant;
gout suppressant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic
olmesartanolmesartan: an active metabolite of CS 866biphenylyltetrazoleangiotensin receptor antagonist;
antihypertensive agent
erlotinibaromatic ether;
quinazolines;
secondary amino compound;
terminal acetylenic compound
antineoplastic agent;
epidermal growth factor receptor antagonist;
protein kinase inhibitor
3-hydroxyglutaric acid3-hydroxyglutaric acid : A 3 hydroxy carboxylic acid that is glutaric acid which is substituted by a hydroxy group at position 3. It is a diagnostic marker for glutaric aciduria type I.3-hydroxy carboxylic acid;
alpha,omega-dicarboxylic acid
human blood serum metabolite;
human urinary metabolite
scutellarinscutellarin : The glycosyloxyflavone which is the 7-O-glucuronide of scutellarein.

scutellarin: see scutellarein for aglycone
glucosiduronic acid;
glycosyloxyflavone;
monosaccharide derivative;
trihydroxyflavone
antineoplastic agent;
proteasome inhibitor
etravirineaminopyrimidine;
aromatic ether;
dinitrile;
organobromine compound
antiviral agent;
HIV-1 reverse transcriptase inhibitor
lapatinibfurans;
organochlorine compound;
organofluorine compound;
quinazolines
antineoplastic agent;
tyrosine kinase inhibitor
sorafenib(trifluoromethyl)benzenes;
aromatic ether;
monochlorobenzenes;
phenylureas;
pyridinecarboxamide
angiogenesis inhibitor;
anticoronaviral agent;
antineoplastic agent;
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor;
ferroptosis inducer;
tyrosine kinase inhibitor
benzaronebenzarone: antihemorrhagic agent; structure1-benzofurans
norfentanylnorfentanyl : A monocarboxylic acid amide resulting from the formal condensation of the aryl amino group of 4-(N'-phenyl)piperidin-4-amine with propanoic acid. A major metabolite of fentanyl.

norfentanyl: metabolite of fentanyl; RN given refers to parent cpd; structure given in first source
anilide;
monocarboxylic acid amide;
piperidines
drug metabolite;
opioid analgesic
3',4'-dimethoxy-alpha-naphthoflavone3',4'-dimethoxy-alpha-naphthoflavone: activated Ah receptor; structure in first source
5-Hydroxy-7-methoxy-6-methylflavoneether;
flavonoids
5,7-dimethoxy-2-phenyl-3,4-dihydro-2H-1-benzopyran-4-oneether;
flavonoids
ritonavirritonavir : An L-valine derivative that is L-valinamide in which alpha-amino group has been acylated by a [(2-isopropyl-1,3-thiazol-4-yl)methyl]methylcarbamoyl group and in which a hydrogen of the carboxamide amino group has been replaced by a (2R,4S,5S)-4-hydroxy-1,6-diphenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}hexan-2-yl group. A CYP3A inhibitor and antiretroviral drug from the protease inhibitor class used to treat HIV infection and AIDS, it is often used as a fixed-dose combination with another protease inhibitor, lopinavir. Also used in combination with dasabuvir sodium hydrate, ombitasvir and paritaprevir (under the trade name Viekira Pak) for treatment of chronic hepatitis C virus genotype 1 infection as well as cirrhosis of the liver.

Ritonavir: An HIV protease inhibitor that works by interfering with the reproductive cycle of HIV. It also inhibits CYTOCHROME P-450 CYP3A.
1,3-thiazoles;
carbamate ester;
carboxamide;
L-valine derivative;
ureas
antiviral drug;
environmental contaminant;
HIV protease inhibitor;
xenobiotic
tryptoquivalinefumitremorgin C : An organic heteropentacyclic compound that is a mycotoxic indole alkaloid produced by several fungi. A potent and specific inhibitor of the breast cancer resistance protein multidrug transporter.aromatic ether;
indole alkaloid;
organic heteropentacyclic compound
breast cancer resistance protein inhibitor;
mycotoxin
1-methoxy-10H-acridin-9-oneacridines
ouabaincardiac glycoside : Steroid lactones containing sugar residues that act on the contractile force of the cardiac muscles.

ouabain : A steroid hormone that is a multi-hydroxylated alpha-L-rhamnosyl cardenoloide. It binds to and inhibits the plasma membrane Na(+)/K(+)-ATPase (sodium pump). It has been isolated naturally from Strophanthus gratus.

Ouabain: A cardioactive glycoside consisting of rhamnose and ouabagenin, obtained from the seeds of Strophanthus gratus and other plants of the Apocynaceae; used like DIGITALIS. It is commonly used in cell biological studies as an inhibitor of the NA(+)-K(+)-EXCHANGING ATPASE.
11alpha-hydroxy steroid;
14beta-hydroxy steroid;
5beta-hydroxy steroid;
alpha-L-rhamnoside;
cardenolide glycoside;
steroid hormone
anti-arrhythmia drug;
cardiotonic drug;
EC 2.3.3.1 [citrate (Si)-synthase] inhibitor;
EC 3.1.3.41 (4-nitrophenylphosphatase) inhibitor;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor;
EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor;
ion transport inhibitor;
plant metabolite
saquinavirsaquinavir : An aspartic acid derivative obtained by formal condensation of the primary amino group of (2S,3R)-4-[(3S,4aS,8aS)-3-(tert-butylcarbamoyl)octahydroisoquinolin-2(1H)-yl]-3-hydroxy-1-phenylbutan-2-ylamine with the carboxy group of N(2)(-quinolin-2-ylcarbonyl)-L-asparagine. An inhibitor of HIV-1 protease.

Saquinavir: An HIV protease inhibitor which acts as an analog of an HIV protease cleavage site. It is a highly specific inhibitor of HIV-1 and HIV-2 proteases, and also inhibits CYTOCHROME P-450 CYP3A.
L-asparagine derivative;
quinolines
antiviral drug;
HIV protease inhibitor
abacavirabacavir : A 2,6-diaminopurine that is (1S)-cyclopent-2-en-1-ylmethanol in which the pro-R hydrogen at the 4-position is substituted by a 2-amino-6-(cyclopropylamino)-9H-purin-9-yl group. A nucleoside analogue reverse transcriptase inhibitor (NRTI) with antiretroviral activity against HIV, it is used (particularly as the sulfate) with other antiretrovirals in combination therapy of HIV infection.

abacavir: a carbocyclic nucleoside with potent selective anti-HIV activity
2,6-diaminopurinesantiviral drug;
drug allergen;
HIV-1 reverse transcriptase inhibitor
mometasone furoateMometasone Furoate: A pregnadienediol derivative ANTI-ALLERGIC AGENT and ANTI-INFLAMMATORY AGENT that is used in the management of ASTHMA and ALLERGIC RHINITIS. It is also used as a topical treatment for skin disorders.11beta-hydroxy steroid;
2-furoate ester;
20-oxo steroid;
3-oxo-Delta(1),Delta(4)-steroid;
organochlorine compound;
steroid ester
anti-allergic agent;
anti-inflammatory drug
erythromycin estolateErythromycin Estolate: A macrolide antibiotic, produced by Streptomyces erythreus. It is the lauryl sulfate salt of the propionic ester of erythromycin. This erythromycin salt acts primarily as a bacteriostatic agent. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.aminoglycoside sulfate salt;
erythromycin derivative
enzyme inhibitor
ochratoxin aochratoxin A : A phenylalanine derivative resulting from the formal condensation of the amino group of L-phenylalanine with the carboxy group of (3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1H-2-benzopyran-7-carboxylic acid (ochratoxin alpha). It is among the most widely occurring food-contaminating mycotoxins, produced by Aspergillus ochraceus, Aspergillus carbonarius and Penicillium verrucosum.

ochratoxin A: structure in first source & in Merck, 9th ed, #6549
isochromanes;
monocarboxylic acid amide;
N-acyl-L-phenylalanine;
organochlorine compound;
phenylalanine derivative
Aspergillus metabolite;
calcium channel blocker;
carcinogenic agent;
mycotoxin;
nephrotoxin;
Penicillium metabolite;
teratogenic agent
6-prenylchrysin6-(3,3-dimethylallyl)chrysin : A dihydroxyflavone that is chrysin substituted by a prenyl group at position 6.

6-prenylchrysin: structure in first source
7-hydroxyflavonol;
dihydroxyflavone
erythromycin ethylsuccinateerythromycin ethylsuccinate : A erythromycin derivative that is erythromycin A in which the hydroxy group at position 3R is substituted by a (4-ethoxy-4-oxobutanoyl)oxy group. It is used for the treatment of a wide variety of bacterial infections.

Erythromycin Ethylsuccinate: A macrolide antibiotic, produced by Streptomyces erythreus. This compound is an ester of erythromycin base and succinic acid. It acts primarily as a bacteriostatic agent. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.
cyclic ketone;
erythromycin derivative;
ethyl ester;
succinate ester
arachidonic acidarachidonate : A long-chain fatty acid anion resulting from the removal of a proton from the carboxy group of arachidonic acid.

icosa-5,8,11,14-tetraenoic acid : Any icosatetraenoic acid with the double bonds at positions 5, 8, 11 and 14.
icosa-5,8,11,14-tetraenoic acid;
long-chain fatty acid;
omega-6 fatty acid
Daphnia galeata metabolite;
EC 3.1.1.1 (carboxylesterase) inhibitor;
human metabolite;
mouse metabolite
cyanoginosin lrcyanoginosin LR: cyclic heptapeptide from cyanobacterium Microcystis aeruginosa

microcystin-LR : A microcystin consisting of D-alanyl, L-leucyl, (3S)-3-methyl-D-beta-aspartyl,L-arginyl, 2S,3S,4E,6E,8S,9S)-3-amino-4,5,6,7-tetradehydro-9-methoxy-2,6,8-trimethyl-10-phenyldecanoyl, D-gamma-glutamyl, and 2,3-didehydro-N-methylalanyl residues joined into a 25-membered macrocycle. Produced by the cyanobacterium Microcystis aeruginosa, it is the most studied of the microcystins.
microcystinbacterial metabolite;
EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor;
environmental contaminant;
xenobiotic
tacrolimustacrolimus (anhydrous) : A macrolide lactam containing a 23-membered lactone ring, originally isolated from the fermentation broth of a Japanese soil sample that contained the bacteria Streptomyces tsukubaensis.

Tacrolimus: A macrolide isolated from the culture broth of a strain of Streptomyces tsukubaensis that has strong immunosuppressive activity in vivo and prevents the activation of T-lymphocytes in response to antigenic or mitogenic stimulation in vitro.
macrolide lactambacterial metabolite;
immunosuppressive agent
diethylstilbestroldiethylstilbestrol : An olefinic compound that is trans-hex-3-ene in which the hydrogens at positions 3 and 4 have been replaced by p-hydroxyphenyl groups.

Diethylstilbestrol: A synthetic nonsteroidal estrogen used in the treatment of menopausal and postmenopausal disorders. It was also used formerly as a growth promoter in animals. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), diethylstilbestrol has been listed as a known carcinogen. (Merck, 11th ed)
olefinic compound;
polyphenol
antifungal agent;
antineoplastic agent;
autophagy inducer;
calcium channel blocker;
carcinogenic agent;
EC 1.1.1.146 (11beta-hydroxysteroid dehydrogenase) inhibitor;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor;
endocrine disruptor;
xenoestrogen
gs 4071GS 4071: The acid form.

oseltamivir acid : A cyclohexenecarboxylic acid that is cyclohex-1-ene-1-carboxylic acid which is substituted at positions 3, 4, and 5 by pentan-3-yloxy, acetamido, and amino groups, respectively (the 3R,4R,5S enantiomer). An antiviral drug, it is used as the corresponding ethyl ester prodrug, oseltamivir, to slow the spread of influenza.
acetate ester;
amino acid;
cyclohexenecarboxylic acid;
primary amino compound
antiviral drug;
EC 3.2.1.18 (exo-alpha-sialidase) inhibitor;
marine xenobiotic metabolite
ketoconazole(2R,4S)-ketoconazole : A cis-1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine which dioxolane moiety has (2R,4S)-configuration.cis-1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine
cefamandolecefamandole : A cephalosporin compound having (R)-mandelamido and N-methylthiotetrazole side-groups.

Cefamandole: Semisynthetic wide-spectrum cephalosporin with prolonged action, probably due to beta-lactamase resistance. It is used also as the nafate.
cephalosporin;
semisynthetic derivative
antibacterial drug
tenofovirtenofovir (anhydrous) : A member of the class of phosphonic acids that is methylphosphonic acid in which one of the methyl hydrogens is replaced by a [(2R)-1-(6-amino-9H-purin-9-yl)propan-2-yl]oxy group. An inhibitor of HIV-1 reverse transcriptase, the bis(isopropyloxycarbonyloxymethyl) ester (disoproxil ester) prodrug is used as the fumaric acid salt in combination therapy for the treatment of HIV infection.nucleoside analogue;
phosphonic acids
antiviral drug;
drug metabolite;
HIV-1 reverse transcriptase inhibitor
posaconazolearomatic ether;
conazole antifungal drug;
N-arylpiperazine;
organofluorine compound;
oxolanes;
triazole antifungal drug;
triazoles
trypanocidal drug
micafunginmicafungin : A cyclic hexapeptide echinocandin antibiotic which exerts its effect by inhibiting the synthesis of 1,3-beta-D-glucan, an integral component of the fungal cell wall. It is used as the sodium salt for the treatment of invasive candidiasis, and of aspergillosis in patients who are intolerant of other therapy.

Micafungin: A cyclic lipo-hexapeptide echinocandin antifungal agent that is used for the treatment and prevention of CANDIDIASIS.
antibiotic antifungal drug;
echinocandin
antiinfective agent
8-prenylnaringenin8-prenylnaringenin: a phytogenic antineoplastic agent; structure in first source

sophoraflavanone B : A trihydroxyflavanone that is (S)-naringenin having a prenyl group at position 8.
(2S)-flavan-4-one;
4'-hydroxyflavanones;
trihydroxyflavanone
plant metabolite;
platelet aggregation inhibitor
carbenoxolone sodiumCarbenoxolone: An agent derived from licorice root. It is used for the treatment of digestive tract ulcers, especially in the stomach. Antidiuretic side effects are frequent, but otherwise the drug is low in toxicity.triterpenoid
retinol acetateretinol acetate: structure given in first sourceacetate ester
s 1033(trifluoromethyl)benzenes;
imidazoles;
pyridines;
pyrimidines;
secondary amino compound;
secondary carboxamide
anticoronaviral agent;
antineoplastic agent;
tyrosine kinase inhibitor
N-[3-(trifluoromethyl)phenyl]-4-quinazolinaminequinazolines
diethylstilbestrol dipropionatediethylstilbestrol dipropionate: RN given refers to parent cpd
chlorprothixene(Z)-chlorprothixene : A chlorprothixene in which the double bond adopts a (Z)-configuration.

Chlorprothixene: A thioxanthine with effects similar to the phenothiazine antipsychotics.
chlorprothixene
curcumincurcumin : A beta-diketone that is methane in which two of the hydrogens are substituted by feruloyl groups. A natural dyestuff found in the root of Curcuma longa.

Curcumin: A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes.
aromatic ether;
beta-diketone;
diarylheptanoid;
enone;
polyphenol
anti-inflammatory agent;
antifungal agent;
antineoplastic agent;
biological pigment;
contraceptive drug;
dye;
EC 1.1.1.205 (IMP dehydrogenase) inhibitor;
EC 1.1.1.21 (aldehyde reductase) inhibitor;
EC 1.1.1.25 (shikimate dehydrogenase) inhibitor;
EC 1.6.5.2 [NAD(P)H dehydrogenase (quinone)] inhibitor;
EC 1.8.1.9 (thioredoxin reductase) inhibitor;
EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor;
EC 3.5.1.98 (histone deacetylase) inhibitor;
flavouring agent;
food colouring;
geroprotector;
hepatoprotective agent;
immunomodulator;
iron chelator;
ligand;
lipoxygenase inhibitor;
metabolite;
neuroprotective agent;
nutraceutical;
radical scavenger
N-{3-[(2-phenylquinazolin-4-yl)amino]phenyl}acetamideN-{3-[(2-phenylquinazolin-4-yl)amino]phenyl}acetamide : A member of the class of quinazolines that is quinazoline which is substituted at positions 2 and 4 by phenyl and (3-acetamidophenyl)nitrilo groups, respectively.acetamide;
aromatic amine;
quinazolines;
secondary amino compound;
substituted aniline
digoxindigoxin : A cardenolide glycoside that is digitoxin beta-hydroxylated at C-12. A cardiac glycoside extracted from the foxglove plant, Digitalis lanata, it is used to control ventricular rate in atrial fibrillation and in the management of congestive heart failure with atrial fibrillation, but the margin between toxic and therapeutic doses is small.

Digoxin: A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)
cardenolide glycoside;
steroid saponin
anti-arrhythmia drug;
cardiotonic drug;
EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor;
epitope
2-(4-chlorophenyl)guanidineorganochlorine compound
cancidas
fusidic acidfusidic acid : A steroid antibiotic that is isolated from the fermentation broth of Fusidium coccineum.

Fusidic Acid: An antibiotic isolated from the fermentation broth of Fusidium coccineum. (From Merck Index, 11th ed). It acts by inhibiting translocation during protein synthesis.
11alpha-hydroxy steroid;
3alpha-hydroxy steroid;
alpha,beta-unsaturated monocarboxylic acid;
steroid acid;
steroid antibiotic;
sterol ester
EC 2.7.1.33 (pantothenate kinase) inhibitor;
Escherichia coli metabolite;
protein synthesis inhibitor
estrone sulfateestrone sulfate: sulfoconjugated estrone; RN given refers to parent cpd17-oxo steroid;
steroid sulfate
human metabolite;
mouse metabolite
hmr 3647
2-chloro-n(6)-(3-iodobenzyl)adenosine-5'-n-methyluronamide2-chloro-N(6)-(3-iodobenzyl)adenosine-5'-N-methyluronamide: structure given in first source
dasatinibdasatinib (anhydrous) : An aminopyrimidine that is 2-methylpyrimidine which is substituted at position 4 by the primary amino group of 2-amino-1,3-thiazole-5-carboxylic acid and at position 6 by a 4-(2-hydroxyethyl)piperazin-1-yl group, and in which the carboxylic acid group has been formally condensed with 2-chloro-6-methylaniline to afford the corresponding amide. A multi-targeted kinase inhibitor, it is used, particularly as the monohydrate, for the treatment of chronic, accelerated, or myeloid or lymphoid blast phase chronic myeloid leukemia. Note that the name 'dasatinib' is used to refer to the monohydrate (USAN) as well as to anhydrous dasatinib (INN).

N-(2-chloro-6-methylphenyl)-2-((6-(4-(2-hydroxyethyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)amino)-1,3-thiazole-5-carboxamide: a dasatinib prodrug; structure in first source
1,3-thiazoles;
aminopyrimidine;
monocarboxylic acid amide;
N-(2-hydroxyethyl)piperazine;
N-arylpiperazine;
organochlorine compound;
secondary amino compound;
tertiary amino compound
anticoronaviral agent;
antineoplastic agent;
tyrosine kinase inhibitor
zd 6474CH 331: structure in first sourcearomatic ether;
organobromine compound;
organofluorine compound;
piperidines;
quinazolines;
secondary amine
antineoplastic agent;
tyrosine kinase inhibitor
silybin
merbaronemerbarone: structure given in first source
sq 109N-geranyl-N'-(2-adamantyl)ethane-1,2-diamine: has antitubercular activity
quercetin7-hydroxyflavonol;
pentahydroxyflavone
antibacterial agent;
antineoplastic agent;
antioxidant;
Aurora kinase inhibitor;
chelator;
EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor;
geroprotector;
phytoestrogen;
plant metabolite;
protein kinase inhibitor;
radical scavenger
bilirubinbiladienes;
dicarboxylic acid
antioxidant;
human metabolite;
mouse metabolite
dinoprostoneprostaglandin E2 : Prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins.prostaglandins Ehuman metabolite;
mouse metabolite;
oxytocic
dinoprostDinoprost: A naturally occurring prostaglandin that has oxytocic, luteolytic, and abortifacient activities. Due to its vasocontractile properties, the compound has a variety of other biological actions.

prostaglandin F2alpha : A prostaglandins Falpha that is prosta-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9, 11 and 15. It is a naturally occurring prostaglandin used to induce labor.
monocarboxylic acid;
prostaglandins Falpha
human metabolite;
mouse metabolite
apigeninChamomile: Common name for several daisy-like plants (MATRICARIA; TRIPLEUROSPERMUM; ANTHEMIS; CHAMAEMELUM) native to Europe and Western Asia, now naturalized in the United States and Australia.trihydroxyflavoneantineoplastic agent;
metabolite
luteolin3'-hydroxyflavonoid;
tetrahydroxyflavone
angiogenesis inhibitor;
anti-inflammatory agent;
antineoplastic agent;
apoptosis inducer;
c-Jun N-terminal kinase inhibitor;
EC 2.3.1.85 (fatty acid synthase) inhibitor;
immunomodulator;
nephroprotective agent;
plant metabolite;
radical scavenger;
vascular endothelial growth factor receptor antagonist
beta carotenebeta Carotene: A carotenoid that is a precursor of VITAMIN A. Beta carotene is administered to reduce the severity of photosensitivity reactions in patients with erythropoietic protoporphyria (PORPHYRIA, ERYTHROPOIETIC).

provitamin A : A provitamin that can be converted into vitamin A by enzymes from animal tissues.
carotenoid beta-end derivative;
cyclic carotene
antioxidant;
biological pigment;
cofactor;
ferroptosis inhibitor;
human metabolite;
mouse metabolite;
plant metabolite;
provitamin A
ayanin3',5-dihydroxy-3,4',7-trimethoxyflavone : A trimethoxyflavone that is quercetin in which the hydroxy groups at positions 3, 4' and 7 have been replaced by methoxy groups.

ayanin: has cytoprotective and anti-neuroinflammatory activities; isolated from Croton schiedeanus (Euphorbiaceae); structure in first source
dihydroxyflavone;
trimethoxyflavone
plant metabolite
kaempferol7-hydroxyflavonol;
flavonols;
tetrahydroxyflavone
antibacterial agent;
geroprotector;
human blood serum metabolite;
human urinary metabolite;
human xenobiotic metabolite;
plant metabolite
harmineharmine : A harmala alkaloid in which the harman skeleton is methoxy-substituted at C-7.

Harmine: Alkaloid isolated from seeds of PEGANUM HARMALA; ZYGOPHYLLACEAE. It is identical to banisterine, or telepathine, from Banisteria caapi and is one of the active ingredients of hallucinogenic drinks made in the western Amazon region from related plants. It has no therapeutic use, but (as banisterine) was hailed as a cure for postencephalitic PARKINSON DISEASE in the 1920's.
harmala alkaloidanti-HIV agent;
EC 1.4.3.4 (monoamine oxidase) inhibitor;
metabolite
genistein7-hydroxyisoflavonesantineoplastic agent;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
geroprotector;
human urinary metabolite;
phytoestrogen;
plant metabolite;
tyrosine kinase inhibitor
amphotericin bamphotericin B : A macrolide antibiotic used to treat potentially life-threatening fungal infections.

Amphotericin B: Macrolide antifungal antibiotic produced by Streptomyces nodosus obtained from soil of the Orinoco river region of Venezuela.
antibiotic antifungal drug;
macrolide antibiotic;
polyene antibiotic
antiamoebic agent;
antiprotozoal drug;
bacterial metabolite
chrysinchrysin : A dihydroxyflavone in which the two hydroxy groups are located at positions 5 and 7.7-hydroxyflavonol;
dihydroxyflavone
anti-inflammatory agent;
antineoplastic agent;
antioxidant;
EC 2.7.11.18 (myosin-light-chain kinase) inhibitor;
hepatoprotective agent;
plant metabolite
morinmorin : A pentahydroxyflavone that is 7-hydroxyflavonol bearing three additional hydroxy substituents at positions 2' 4' and 5.

morin: a light yellowish pigment found in the wood of old fustic (Chlorophora tinctoria)
7-hydroxyflavonol;
pentahydroxyflavone
angiogenesis modulating agent;
anti-inflammatory agent;
antibacterial agent;
antihypertensive agent;
antineoplastic agent;
antioxidant;
EC 5.99.1.2 (DNA topoisomerase) inhibitor;
hepatoprotective agent;
metabolite;
neuroprotective agent
pachypodolpachypodol : A trimethoxyflavone that is quercetin in which the hydroxy groups at position 3, 7 and 3' are replaced by methoxy groups. It has been isolated from Combretum quadrangulare and Euodia elleryana.

pachypodol: new flavonoid isolated from Pachypodanthium confine; from Chinese herb Agastache folium; structure
dihydroxyflavone;
trimethoxyflavone
antiemetic;
plant metabolite
ellagic acidcatechols;
cyclic ketone;
lactone;
organic heterotetracyclic compound;
polyphenol
antioxidant;
EC 1.14.18.1 (tyrosinase) inhibitor;
EC 2.3.1.5 (arylamine N-acetyltransferase) inhibitor;
EC 2.4.1.1 (glycogen phosphorylase) inhibitor;
EC 2.5.1.18 (glutathione transferase) inhibitor;
EC 2.7.1.127 (inositol-trisphosphate 3-kinase) inhibitor;
EC 2.7.1.151 (inositol-polyphosphate multikinase) inhibitor;
EC 2.7.4.6 (nucleoside-diphosphate kinase) inhibitor;
EC 2.7.7.7 (DNA-directed DNA polymerase) inhibitor;
EC 5.99.1.2 (DNA topoisomerase) inhibitor;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
food additive;
fungal metabolite;
geroprotector;
plant metabolite;
skin lightening agent
estradiol-17 beta-glucuronide17beta-estradiol 17-glucosiduronic acid : A steroid glucosiduronic acid that consists of 17beta-estradiol having a beta-glucuronyl residue attached at position 17 via a glycosidic linkage.3-hydroxy steroid;
steroid glucosiduronic acid
l 660,711quinolines
tectochrysintectochrysin : A monohydroxyflavone that is flavone substituted by a hydroxy group at position 4 and a methoxy group at position 7 respectively.

tectochrysin: structure in first source
monohydroxyflavone;
monomethoxyflavone
antidiarrhoeal drug;
antineoplastic agent;
plant metabolite
pitavastatinpitavastatin : A dihydroxy monocarboxylic acid that is (6E)-7-[2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl]hept-6-enoic acid in which the two hydroxy groups are located at positions 3 and 5 (the 3R,5S-stereoisomer). Used as its calcium salt for treatment of hypercholesterolemia (elevated levels of cholesterol in the blood) on patients unable to sufficiently lower their cholesterol levels by diet and exercise.cyclopropanes;
dihydroxy monocarboxylic acid;
monofluorobenzenes;
quinolines;
statin (synthetic)
antioxidant
cyclosporineramihyphin A: one of the metabolites produced by Fusarium sp. S-435; RN given refers to cpd with unknown MFhomodetic cyclic peptideanti-asthmatic drug;
anticoronaviral agent;
antifungal agent;
antirheumatic drug;
carcinogenic agent;
dermatologic drug;
EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor;
geroprotector;
immunosuppressive agent;
metabolite
hydromorphonehydromorphone : A morphinane alkaloid that is a hydrogenated ketone derivative of morphine. A semi-synthetic drug, it is a centrally acting pain medication of the opioid class.

Hydromorphone: An opioid analgesic made from MORPHINE and used mainly as an analgesic. It has a shorter duration of action than morphine.
morphinane alkaloid;
organic heteropentacyclic compound
mu-opioid receptor agonist;
opioid analgesic
sirolimussirolimus : A macrolide lactam isolated from Streptomyces hygroscopicus consisting of a 29-membered ring containing 4 trans double bonds, three of which are conjugated. It is an antibiotic, immunosupressive and antineoplastic agent.

Sirolimus: A macrolide compound obtained from Streptomyces hygroscopicus that acts by selectively blocking the transcriptional activation of cytokines thereby inhibiting cytokine production. It is bioactive only when bound to IMMUNOPHILINS. Sirolimus is a potent immunosuppressant and possesses both antifungal and antineoplastic properties.
antibiotic antifungal drug;
cyclic acetal;
cyclic ketone;
ether;
macrolide lactam;
organic heterotricyclic compound;
secondary alcohol
antibacterial drug;
anticoronaviral agent;
antineoplastic agent;
bacterial metabolite;
geroprotector;
immunosuppressive agent;
mTOR inhibitor
topiroxostatFYX-051: xanthine oxidoreductase inhibitor
licochalcone alicochalcone A: has both anti-inflammatory and antineoplastic activities; structure given in first source; isolated from root of Glycyrrhiza inflata; RN given refers to (E)-isomerchalcones
5,4'-dihydroxy-3,6,7-trimethoxyflavone5,4'-dihydroxy-3,6,7-trimethoxyflavone: from Microliabum polymnioides; structure in first source
bosutinib4-((2,4-dichloro-5-methoxyphenyl)amino)-6-methoxy-7-(3-(4-methyl-1-piperazinyl)propoxy)-3-quinolinecarbonitrile: a Src kinase inhibitor; structure in first sourceaminoquinoline;
aromatic ether;
dichlorobenzene;
N-methylpiperazine;
nitrile;
tertiary amino compound
antineoplastic agent;
tyrosine kinase inhibitor
su 11248monocarboxylic acid amide;
pyrroles
angiogenesis inhibitor;
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
immunomodulator;
neuroprotective agent;
vascular endothelial growth factor receptor antagonist
fosbretabulinstilbenoid
5-hydroxy-3,3',4',7-tetramethoxyflavone5-hydroxy-3,3',4',7-tetramethoxyflavone : A monohydroxyflavone that is 5-hydroxyflavone which is substituted by methoxy groups at positions 3,3',4' and 7.

5-hydroxy-3,7,3',4'-tetramethoxyflavone: from the rhizome of Kaempferia parviflora; inhibits monocyte adhesion and cellular reactive oxygen species production in human umbilical vein endothelial cells
3'-methoxyflavones;
monohydroxyflavone;
tetramethoxyflavone
plant metabolite
flavokawain aflavokawain A: from kava extract, induces apoptosis in bladder cancer cells; structure in first sourcechalcones
Isoliquiritigenin 4,4'-dimethyl etherchalcones
methylnaltrexonemethylnaltrexone: RN given refers to parent cpd(5alpha)-isomerphenanthrenes
indinavir sulfateIndinavir: A potent and specific HIV protease inhibitor that appears to have good oral bioavailability.dicarboxylic acid diamide;
N-(2-hydroxyethyl)piperazine;
piperazinecarboxamide
HIV protease inhibitor
norstictic acidnorstictic acid: from Xanthoparmelia chlorochroa; structure in first source
3,3',4,5'-tetramethoxy-trans-stilbene(E)-3,4,3',5'-tetramethoxystilbene: from the leaves of Eugenia rigida; structure in first source
ceftriaxone1,2,4-triazines;
1,3-thiazoles;
cephalosporin;
oxime O-ether
antibacterial drug;
drug allergen;
EC 3.5.2.6 (beta-lactamase) inhibitor
penicillin v1,1'-diethyl-2,2'-cyanine;
quinolines
famotidine1,3-thiazoles;
guanidines;
sulfonamide
anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor
cefotaximecefotaxime : A cephalosporin compound having acetoxymethyl and [2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups.

Cefotaxime: Semisynthetic broad-spectrum cephalosporin.
1,3-thiazoles;
cephalosporin;
oxime O-ether
antibacterial drug;
drug allergen
2-chloro-4',6'-dimethoxy-2'-hydroxychalcone2-chloro-4',6'-dimethoxy-2'-hydroxychalcone: induces glutathione biosynthesis; structure in first source
metochalconemetochalcone: structure
proguanilproguanil : A biguanide compound which has isopropyl and p-chlorophenyl substituents on the terminal N atoms. A prophylactic antimalarial drug, it works by inhibiting the enzyme dihydrofolate reductase, which is involved in the reproduction of the malaria parasites Plasmodium falciparum and P. vivax within the red blood cells.

Proguanil: A biguanide compound which metabolizes in the body to form cycloguanil, an anti-malaria agent.
biguanides;
monochlorobenzenes
antimalarial;
antiprotozoal drug;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor
rifamycin svrifamycin SV : A member of the class of rifamycins that exhibits antibiotic and antitubercular properties.

rifamycin SV: RN given refers to parent cpd; structure in Merck Index, 9th ed, #8009
acetate ester;
cyclic ketal;
lactam;
macrocycle;
organic heterotetracyclic compound;
polyphenol;
rifamycins
antimicrobial agent;
antitubercular agent;
bacterial metabolite
lasalocid sodiumlasalocid sodium : The sodium salt of lasalocid. It is a veterinary ionophore antibiotic used for prevention and treatment of coccidiosis in poultry.benzoates;
organic sodium salt
coccidiostat;
ionophore
cilastatincarboxamide;
L-cysteine derivative;
non-proteinogenic L-alpha-amino acid;
organic sulfide
EC 3.4.13.19 (membrane dipeptidase) inhibitor;
environmental contaminant;
protease inhibitor;
xenobiotic
microcystin yrmicrocystin YR: structure given in first source; isolated from cyanobacterium
rilpivirineaminopyrimidine;
nitrile
EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor;
HIV-1 reverse transcriptase inhibitor
sophoraflavanone asophoraflavanone A : A trihydroxyflavanone that is (S)-naringenin substituted by a geranyl group at position 8. Isolated from Macaranga bicolor, it exhibits antibacterial and antineoplastic activities.

sophoraflavanone A: structure in first source
(2S)-flavan-4-one;
4'-hydroxyflavanones;
trihydroxyflavanone
antibacterial agent;
antineoplastic agent;
metabolite
acetyl isogambogic acidacetyl isogambogic acid: structure in first source
Garcinolic acidpyranoxanthones
isavuconazoleisavuconazole : A 1,3-thiazole that is butan-2-ol which is substituted at positions 1, 2, and 3 by 1,2,4-triazol-1-yl, 2,5-difluorophenyl, and 4-(p-cyanophenyl)-1,3-thiazol-2-yl groups, respectively. It is an antifungal drug used for the treatment of invasive aspergillosis and invasive mucormycosis.1,3-thiazoles;
conazole antifungal drug;
difluorobenzene;
nitrile;
tertiary alcohol;
triazole antifungal drug
EC 1.14.13.70 (sterol 14alpha-demethylase) inhibitor;
ergosterol biosynthesis inhibitor;
orphan drug
chlorhexidinechlorhexidine : A bisbiguanide compound with a structure consisting of two (p-chlorophenyl)guanide units linked by a hexamethylene bridge.

Chlorhexidine: A disinfectant and topical anti-infective agent used also as mouthwash to prevent oral plaque.
biguanides;
monochlorobenzenes
antibacterial agent;
antiinfective agent
timcodartimcodar: a mutlidrug resistance inhibitor; structure in first source
sincalideSincalide: An octapeptide hormone present in the intestine and brain. When secreted from the gastric mucosa, it stimulates the release of bile from the gallbladder and digestive enzymes from the pancreas.oligopeptide
ursodoxicoltaurinetauroursodeoxycholate : An organosulfonate oxoanion that is the conjugate base of tauroursodeoxycholic acid arising from deprotonation of the sulfonate OH group; major species at pH 7.3.

tauroursodeoxycholic acid : A bile acid taurine conjugate derived from ursoodeoxycholic acid.
bile acid taurine conjugateanti-inflammatory agent;
apoptosis inhibitor;
bone density conservation agent;
cardioprotective agent;
human metabolite;
neuroprotective agent
tivozanibN-(2-chloro-4-((6,7-dimethoxy-4-quinolyl)oxy)phenyl)-N'-(5-methyl-3-isoxazolyl)urea: KNR-951 is the HCl, monohydrate salt; an antineoplastic agent; structure in first sourcearomatic ether
rhodamine 123organic chloride salt;
xanthene dye
fluorochrome
deltorphin ii, ala(2)-peptide
linagliptinlinagliptin : A xanthine that is 7H-xanthine bearing (4-methylquinazolin-2-yl)methyl, methyl, but-2-yn-1-yl and 3-aminopiperidin-1-yl substituents at positions 1, 3, 7 and 8 respectively (the R-enantiomer). Used for treatment of type II diabetes.

Linagliptin: A purine and quinazoline derivative that functions as an INCRETIN and DIPEPTIDYL-PEPTIDASE IV INHIBTOR. It is used as a HYPOGLYCEMIC AGENT in the treatment of TYPE II DIABETES MELLITUS.
aminopiperidine;
quinazolines
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
hypoglycemic agent
6-hydroxybenzbromarone6-hydroxybenzbromarone: metabolite M2 of benzbromarone
ko 143beta-carbolines;
tert-butyl ester
m-chlorophenylguanidine
methyl cholatemethyl cholate: RN given refers to (3 alpha,5 beta,7 alpha,12 alpha)-isomerbile acid
regorafenib(trifluoromethyl)benzenes;
aromatic ether;
monochlorobenzenes;
monofluorobenzenes;
phenylureas;
pyridinecarboxamide
antineoplastic agent;
hepatotoxic agent;
tyrosine kinase inhibitor
alisporiviralisporivir: nonimmunosuppressive cyclosporin analog; structure/sequence in first sourcehomodetic cyclic peptideanticoronaviral agent
osi 906cyclobutanes;
quinolines
fostamatinibfostamatinib: a spleen tyrosine kinase (Syk) inhibitor, metabolized to R406
wk-x-34WK-X-34: inhibitor of P-glycoprotein and BCRP (breast cancer resistance protein); structure in first source
arhalofenatearhalofenate: a PPAR-gamma modulator
xr 9577
gs-9148GS-9148: anti-HiV; structure in first source
tanninsgallotannin : A class of hydrolysable tannins obtained by condensation of the carboxy group of gallic acid (and its polymeric derivatives) with the hydroxy groups of a monosaccharide (most commonly glucose).tannin
dicloxacillin sodiumhydrate
cr 1409lorglumide sodium : A racemate comprising equal amounts of (R)- and (S)-lorglumide sodium.
salinomycin
gdc 0449HhAntag691: inhibits the hedgehog pathway and ABC transporters; has antineoplastic activitybenzamides;
monochlorobenzenes;
pyridines;
sulfone
antineoplastic agent;
Hedgehog signaling pathway inhibitor;
SMO receptor antagonist;
teratogenic agent
bms 754807BMS 754807: an IGR-1R kinase inhibitor; structure in first sourcepyrazoles;
pyridines;
pyrrolidines;
pyrrolotriazine
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
pci 32765ibrutinib : A member of the class of acrylamides that is (3R)-3-[4-amino-3-(4-phenoxyphenyl)pyrazolo[3,4-d]pyrimidin-1-yl]piperidine in which the piperidine nitrogen is replaced by an acryloyl group. A selective and covalent inhibitor of the enzyme Bruton's tyrosine kinase, it is used for treatment of B-cell malignancies.

ibrutinib: a Btk protein inhibitor
acrylamides;
aromatic amine;
aromatic ether;
N-acylpiperidine;
pyrazolopyrimidine;
tertiary carboxamide
antineoplastic agent;
EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor
ponatinib(trifluoromethyl)benzenes;
acetylenic compound;
benzamides;
imidazopyridazine;
N-methylpiperazine
antineoplastic agent;
tyrosine kinase inhibitor
tak-875biphenyls
cobicistat1,3-thiazoles;
carbamate ester;
monocarboxylic acid amide;
morpholines;
ureas
P450 inhibitor
gs-9451
alectinibaromatic ketone;
morpholines;
nitrile;
organic heterotetracyclic compound;
piperidines
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
oligomycin aantibiotic antifungal agent;
diketone;
oligomycin;
pentol
antineoplastic agent;
EC 3.6.3.14 (H(+)-transporting two-sector ATPase) inhibitor;
nematicide
lesinuradlesinurad : A member of the class of triazoles that is [(3-bromo-1,2,4-triazol-5-yl)sulfanyl]acetic acid substituted at position 1 of the triazole ring by a 4-cyclopropylnaphthalen-1-yl group. Used for treatment of gout.

lesinurad: a uric acid reabsorption inhibitor
aryl sulfide;
cyclopropanes;
monocarboxylic acid;
naphthalenes;
organobromine compound;
triazoles
uricosuric drug
novobiocinnovobiocin : A coumarin-derived antibiotic obtained from Streptomyces niveus.

Novobiocin: An antibiotic compound derived from Streptomyces niveus. It has a chemical structure similar to coumarin. Novobiocin binds to DNA gyrase, and blocks adenosine triphosphatase (ATPase) activity. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p189)
carbamate ester;
ether;
hexoside;
hydroxycoumarin;
monocarboxylic acid amide;
monosaccharide derivative;
phenols
antibacterial agent;
antimicrobial agent;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
Escherichia coli metabolite;
hepatoprotective agent
tetracyclinetetracycline : A broad-spectrum polyketide antibiotic produced by the Streptomyces genus of actinobacteria.

Tetracycline: A naphthacene antibiotic that inhibits AMINO ACYL TRNA binding during protein synthesis.
piroxicambenzothiazine;
monocarboxylic acid amide;
pyridines
analgesic;
antirheumatic drug;
cyclooxygenase 1 inhibitor;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
non-steroidal anti-inflammatory drug
4-hydroxy-3-(4-hydroxyphenyl)-5-methoxy-8,8-dimethyl-6-(3-methylbut-2-enyl)-2-pyrano[2,3-h][1]benzopyranoneisoflavonoid
citrininCitrinin: Antibiotic and mycotoxin from Aspergillus niveus and Penicillium citrinum.
dolutegravirdifluorobenzene;
monocarboxylic acid amide;
organic heterotricyclic compound;
secondary carboxamide
HIV-1 integrase inhibitor
cyanine 863
chir 258
acycloviracyclovir : An oxopurine that is guanine substituted by a (2-hydroxyethoxy)methyl substituent at position 9. Used in the treatment of viral infections.

Acyclovir: A GUANOSINE analog that acts as an antimetabolite. Viruses are especially susceptible. Used especially against herpes.
2-aminopurines;
oxopurine
antimetabolite;
antiviral drug
rifampinRifampin: A semisynthetic antibiotic produced from Streptomyces mediterranei. It has a broad antibacterial spectrum, including activity against several forms of Mycobacterium. In susceptible organisms it inhibits DNA-dependent RNA polymerase activity by forming a stable complex with the enzyme. It thus suppresses the initiation of RNA synthesis. Rifampin is bactericidal, and acts on both intracellular and extracellular organisms. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p1160)cyclic ketal;
hydrazone;
N-iminopiperazine;
N-methylpiperazine;
rifamycins;
semisynthetic derivative;
zwitterion
angiogenesis inhibitor;
antiamoebic agent;
antineoplastic agent;
antitubercular agent;
DNA synthesis inhibitor;
EC 2.7.7.6 (RNA polymerase) inhibitor;
Escherichia coli metabolite;
geroprotector;
leprostatic drug;
neuroprotective agent;
pregnane X receptor agonist;
protein synthesis inhibitor
ganciclovir2-aminopurines;
oxopurine
antiinfective agent;
antiviral drug
raltitrexedN-acyl-amino acid
pemetrexedpemetrexed disodium : An organic sodium salt that is the disodium salt of N-{4-[2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl}-L-glutamic acid. Inhibits thymidylate synthase (TS), 421 dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT).N-acyl-L-glutamic acid;
pyrrolopyrimidine
antimetabolite;
antineoplastic agent;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor;
EC 2.1.1.45 (thymidylate synthase) inhibitor;
EC 2.1.2.2 (phosphoribosylglycinamide formyltransferase) inhibitor
tmc 256c1TMC 256C1: inhibits IL-4 signal transduction; structure in first source
amg531