Page last updated: 2024-10-24

sperm midpiece

Definition

Target type: cellularcomponent

The highly organized segment of the sperm flagellum which begins at the connecting piece and is characterized by the presence of 9 outer dense fibers (ODFs) that lie outside each of the 9 outer axonemal microtubule doublets and by a sheath of mitochondria that encloses the ODFs and the axoneme; the midpiece terminates about one-fourth of the way down the sperm flagellum at the annulus, which marks the beginning of the principal piece. [GOC:cjm, MP:0009831]

Proteins (13)

ProteinDefinitionTaxonomy
RhodopsinA rhodopsin that is encoded in the genome of cow. [OMA:P02699, PRO:DNx]Bos taurus (cattle)
Neuromedin-K receptorA neuromedin-K receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P29371]Homo sapiens (human)
Substance-P receptorA substance-P receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P25103]Homo sapiens (human)
Substance-K receptorA substance-K receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P21452]Homo sapiens (human)
Sodium/potassium-transporting ATPase subunit alpha-4A sodium/potassium-transporting ATPase subunit alpha-4 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q13733]Homo sapiens (human)
Voltage-dependent anion-selective channel protein 2A voltage-dependent anion-selective channel protein 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P45880]Homo sapiens (human)
Neuromedin-K receptorA neuromedin-K receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P29371]Homo sapiens (human)
Substance-P receptorA substance-P receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P25103]Homo sapiens (human)
Substance-K receptorA substance-K receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P21452]Homo sapiens (human)
Angiotensin-converting enzyme An angiotensin-converting enzyme that is encoded in the genome of human. [PRO:WCB, UniProtKB:P12821]Homo sapiens (human)
60 kDa heat shock protein, mitochondrialA 60 kDa heat shock protein, mitochondrial that is encoded in the genome of human. [PRO:DNx, UniProtKB:P10809]Homo sapiens (human)
Calmodulin-1A calmodulin (human) that is a translation product of the CALM1 gene. [PRO:DAN, UniProtKB:P0DP23]Homo sapiens (human)
Na(+)/H(+) exchange regulatory cofactor NHE-RF1A Na(+)/H(+) exchange regulatory cofactor NHE-RF1 that is encoded in the genome of human. [PRO:CNA, UniProtKB:O14745]Homo sapiens (human)

Compounds (281)

CompoundDefinitionClassesRoles
gallic acidgallate : A trihydroxybenzoate that is the conjugate base of gallic acid.trihydroxybenzoic acidantineoplastic agent;
antioxidant;
apoptosis inducer;
astringent;
cyclooxygenase 2 inhibitor;
EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor;
geroprotector;
human xenobiotic metabolite;
plant metabolite
4-nonylphenol4-nonylphenol : A member of the class of phenols that is phenol which is para-substituted with a nonyl group.

4-nonylphenol: structure in first source; see also record for nonylphenol
phenolsenvironmental contaminant
albuterolalbuterol : A member of the class of phenylethanolamines that is 4-(2-amino-1-hydroxyethyl)-2-(hydroxymethyl)phenol having a tert-butyl group attached to the nirogen atom. It acts as a beta-adrenergic agonist used in the treatment of asthma and chronic obstructive pulmonary disease (COPD).

Albuterol: A short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.
phenols;
phenylethanolamines;
secondary amino compound
beta-adrenergic agonist;
bronchodilator agent;
environmental contaminant;
xenobiotic
amiodaroneamiodarone : A member of the class of 1-benzofurans that is 1-benzofuran substituted by a butyl group at position 2 and a 4-[2-(diethylamino)ethoxy]-3,5-diiodobenzoyl group at position 3. It is a cardiovascular drug used for the treatment of cardiac dysrhythmias.

Amiodarone: An antianginal and class III antiarrhythmic drug. It increases the duration of ventricular and atrial muscle action by inhibiting POTASSIUM CHANNELS and VOLTAGE-GATED SODIUM CHANNELS. There is a resulting decrease in heart rate and in vascular resistance.
1-benzofurans;
aromatic ketone;
organoiodine compound;
tertiary amino compound
cardiovascular drug
astemizoleastemizole : A piperidine compound having a 2-(4-methoxyphenyl)ethyl group at the 1-position and an N-[(4-fluorobenzyl)benzimidazol-2-yl]amino group at the 4-position.

Astemizole: Antihistamine drug now withdrawn from the market in many countries because of rare but potentially fatal side effects.
benzimidazoles;
piperidines
anti-allergic agent;
anticoronaviral agent;
H1-receptor antagonist
aurintricarboxylic acidaurintricarboxylic acid : A member of the class of quinomethanes that is 3-methylidene-6-oxocyclohexa-1,4-diene-1-carboxylic acid in which the methylidene hydrogens are replaced by 4-carboxy-3-hydroxyphenyl groups. The trisodium salt is the biological stain 'chrome violet CG' while the triammonium salt is 'aluminon'.

Aurintricarboxylic Acid: A dye which inhibits protein biosynthesis at the initial stages. The ammonium salt (aluminon) is a reagent for the colorimetric estimation of aluminum in water, foods, and tissues.
monohydroxybenzoic acid;
quinomethanes;
tricarboxylic acid
fluorochrome;
histological dye;
insulin-like growth factor receptor 1 antagonist
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
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
buspironebuspirone : An azaspiro compound that is 8-azaspiro[4.5]decane-7,9-dione substituted at the nitrogen atom by a 4-(piperazin-1-yl)butyl group which in turn is substituted by a pyrimidin-2-yl group at the N(4) position.

Buspirone: An anxiolytic agent and serotonin receptor agonist belonging to the azaspirodecanedione class of compounds. Its structure is unrelated to those of the BENZODIAZAPINES, but it has an efficacy comparable to DIAZEPAM.
azaspiro compound;
N-alkylpiperazine;
N-arylpiperazine;
organic heteropolycyclic compound;
piperidones;
pyrimidines
anxiolytic drug;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
sedative;
serotonergic agonist
candesartancandesartan : A benzimidazolecarboxylic acid that is 1H-benzimidazole-7-carboxylic acid substituted by an ethoxy group at position 2 and a ({2'-(1H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl}methyl) group at position 1. It is a angiotensin receptor antagonist used for the treatment of hypertension.

candesartan: a nonpeptide angiotensin II receptor antagonist
benzimidazolecarboxylic acid;
biphenylyltetrazole
angiotensin receptor antagonist;
antihypertensive agent;
environmental contaminant;
xenobiotic
chlorpromazinechlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety.

Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup.
organochlorine compound;
phenothiazines;
tertiary amine
anticoronaviral agent;
antiemetic;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
phenothiazine antipsychotic drug
ciglitazoneciglitazone : An aromatic ether that consists of 1,3-thiazolidine-2,4-dione with position 5 substituted by a 4-[(1-methylcyclohexyl)methoxy]benzyl group. A selective PPARgamma agonist.

ciglitazone: structure given in second source; PPAR agonist used for type II diabetes
aromatic ether;
thiazolidinone
antineoplastic agent;
insulin-sensitizing drug
clotrimazoleconazole antifungal drug;
imidazole antifungal drug;
imidazoles;
monochlorobenzenes
antiinfective agent;
environmental contaminant;
xenobiotic
eflornithineeflornithine : A fluoroamino acid that is ornithine substituted by a difluoromethyl group at position 2.

Eflornithine: An inhibitor of ORNITHINE DECARBOXYLASE, the rate limiting enzyme of the polyamine biosynthetic pathway.
alpha-amino acid;
fluoroamino acid
trypanocidal drug
dichlorophenDichlorophen: Nontoxic laxative vermicide effective for taenia infestation. It tends to produce colic and nausea. It is also used as a veterinary fungicide, anthelmintic, and antiprotozoan. (From Merck, 11th ed.)bridged diphenyl fungicide;
diarylmethane
thiorphanThiorphan: A potent inhibitor of membrane metalloendopeptidase (ENKEPHALINASE). Thiorphan potentiates morphine-induced ANALGESIA and attenuates naloxone-precipitated withdrawal symptoms.N-acyl-amino acid
ebastineorganic molecular entity
econazole1-{2-(4-chlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl}imidazole : A member of the class of imidazoles that is 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethanol in which the hydroxyl hydrogen is replaced by a 4-chlorobenzyl group.

econazole : A racemate composed of equimolar amounts of (R)- and (S)-econazole. Used (as its nitrate salt) to treat skin infections such as athlete's foot, jock itch, ringworm and other fungal skin infections.

Econazole: An imidazole derivative that is commonly used as a topical antifungal agent.
dichlorobenzene;
ether;
imidazoles;
monochlorobenzenes
ethacrynic acidetacrynic acid : An aromatic ether that is phenoxyacetic acid in which the phenyl ring is substituted by chlorines at positions 2 and 3, and by a 2-methylidenebutanoyl group at position 4. It is a loop diuretic used to treat high blood pressure resulting from diseases such as congestive heart failure, liver failure, and kidney failure. It is also a glutathione S-transferase (EC 2.5.1.18) inhibitor.

Ethacrynic Acid: A compound that inhibits symport of sodium, potassium, and chloride primarily in the ascending limb of Henle, but also in the proximal and distal tubules. This pharmacological action results in excretion of these ions, increased urinary output, and reduction in extracellular fluid. This compound has been classified as a loop or high ceiling diuretic.
aromatic ether;
aromatic ketone;
dichlorobenzene;
monocarboxylic acid
EC 2.5.1.18 (glutathione transferase) inhibitor;
ion transport inhibitor;
loop diuretic
fluphenazineN-alkylpiperazine;
organofluorine compound;
phenothiazines
anticoronaviral agent;
dopaminergic antagonist;
phenothiazine antipsychotic drug
haloproginhaloprogin: minor descriptor (73-86); on-line & INDEX MEDICUS search PHENYL ETHERS (73-86)aromatic ether
harmalolharmalol : A harmala alkaloid in which the harman skeleton is hydroxy-substituted at C-7 and has been reduced across the 3,4 bond.

harmalol: inhibitor of rat liver microsomal UDP-glucuronyltransferase; RN given refers to parent cpd; structure
harmala alkaloidalgal metabolite;
EC 1.4.3.4 (monoamine oxidase) inhibitor
hexachlorophenehexachlorophene : An organochlorine compound that is diphenylmethane in which each of the phenyl groups is substituted by chlorines at positions 2, 3, and 5, and by a hydroxy group at position 6. An antiseptic that is effective against Gram-positive organisms, it is used in soaps and creams for the treatment of various skin disorders. It is also used in agriculture as an acaricide and fungicide, but is not approved for such use within the European Union.

Hexachlorophene: A chlorinated bisphenol antiseptic with a bacteriostatic action against Gram-positive organisms, but much less effective against Gram-negative organisms. It is mainly used in soaps and creams and is an ingredient of various preparations used for skin disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p797)
bridged diphenyl fungicide;
polyphenol;
trichlorobenzene
acaricide;
antibacterial agent;
antifungal agrochemical;
antiseptic drug
ketoconazole1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine : A dioxolane that is 1,3-dioxolane which is substituted at positions 2, 2, and 4 by imidazol-1-ylmethyl, 2,4-dichlorophenyl, and [para-(4-acetylpiperazin-1-yl)phenoxy]methyl groups, respectively.dichlorobenzene;
dioxolane;
ether;
imidazoles;
N-acylpiperazine;
N-arylpiperazine
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
beta-lapachonebeta-lapachone : A benzochromenone that is 3,4-dihydro-2H-benzo[h]chromene-5,6-dione substituted by geminal methyl groups at position 2. Isolated from Tabebuia avellanedae, it exhibits antineoplastic and anti-inflammatory activities.

beta-lapachone: antineoplastic inhibitor of reverse transcriptase, DNA topoisomerase, and DNA polymerase
benzochromenone;
orthoquinones
anti-inflammatory agent;
antineoplastic agent;
plant metabolite
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
vitamin k 3Vitamin K 3: A synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin K2, menaquinone, after alkylation in vivo.1,4-naphthoquinones;
vitamin K
angiogenesis inhibitor;
antineoplastic agent;
EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor;
human urinary metabolite;
nutraceutical
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
miconazole1-[2-(2,4-dichlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl]imidazole : A member of the class of imidazoles that is 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethanol in which the hydroxyl hydrogen is replaced by a 2,4-dichlorobenzyl group.

miconazole : A racemate composed of equimolar amounts of (R)- and (S)-miconazole. Used (as its nitrate salt) to treat skin infections such as athlete's foot, jock itch, ringworm and other fungal skin infections. It inhibits the synthesis of ergosterol, a critical component of fungal cell membranes.

Miconazole: An imidazole antifungal agent that is used topically and by intravenous infusion.
dichlorobenzene;
ether;
imidazoles
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
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
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
primaquineprimaquine : An N-substituted diamine that is pentane-1,4-diamine substituted by a 6-methoxyquinolin-8-yl group at the N(4) position. It is a drug used in the treatment of malaria and Pneumocystis pneumonia.

Primaquine: An aminoquinoline that is given by mouth to produce a radical cure and prevent relapse of vivax and ovale malarias following treatment with a blood schizontocide. It has also been used to prevent transmission of falciparum malaria by those returning to areas where there is a potential for re-introduction of malaria. Adverse effects include anemias and GI disturbances. (From Martindale, The Extra Pharmacopeia, 30th ed, p404)
aminoquinoline;
aromatic ether;
N-substituted diamine
antimalarial
promethazinepromethazine : A tertiary amine that is a substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropan-2-amine moiety.

Promethazine: A phenothiazine derivative with histamine H1-blocking, antimuscarinic, and sedative properties. It is used as an antiallergic, in pruritus, for motion sickness and sedation, and also in animals.
phenothiazines;
tertiary amine
anti-allergic agent;
anticoronaviral agent;
antiemetic;
antipruritic drug;
H1-receptor antagonist;
local anaesthetic;
sedative
protoporphyrin ixprotoporphyrin : A cyclic tetrapyrrole that consists of porphyrin bearing four methyl substituents at positions 3, 8, 13 and 17, two vinyl substituents at positions 7 and 12 and two 2-carboxyethyl substituents at positions 2 and 18. The parent of the class of protoporphyrins.

protoporphyrin IX: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7685
raloxifeneraloxifene : A member of the class of 1-benzothiophenes that is 1-benzothiophene in which the hydrogens at positions 2, 3, and 6 have been replaced by p-hydroxyphenyl, p-[2-(piperidin-1-yl)ethoxy]benzoyl, and hydroxy groups, respectively.1-benzothiophenes;
aromatic ketone;
N-oxyethylpiperidine;
phenols
bone density conservation agent;
estrogen antagonist;
estrogen receptor modulator
sulconazole1-{2-[(4-chlorobenzyl)sulfanyl]-2-(2,4-dichlorophenyl)ethyl}-1H-imidazole : A member of the class of imidazoles that is 1-ethyl-1H-imidazole in which one of the hydrogens of the methyl group is replaced by a (4-chlorobenzyl)sulfanediyl group while a second is replaced by a 2,4-dichlorophenyl group.

sulconazole : A racemate comprising equimolar amounts of (R)- and (S)-sulconazole. An antifungal agent with activity against Candida species, it is used (generally as the nitrate salt) for the topical treatment of fungal skin infections.

sulconazole: RN given refers to cpd with unspecified isomeric designation; structure given in first source
dichlorobenzene;
imidazoles;
monochlorobenzenes;
organic sulfide
terfenadineTerfenadine: A selective histamine H1-receptor antagonist devoid of central nervous system depressant activity. The drug was used for ALLERGY but withdrawn due to causing LONG QT SYNDROME.diarylmethane
trifluoperazineN-alkylpiperazine;
N-methylpiperazine;
organofluorine compound;
phenothiazines
antiemetic;
calmodulin antagonist;
dopaminergic antagonist;
EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor;
EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor;
phenothiazine antipsychotic drug
cetrimonium bromidecetyltrimethylammonium bromide : The organic bromide salt that is the bromide salt of cetyltrimethylammonium; one of the components of the topical antiseptic cetrimide.organic bromide salt;
quaternary ammonium salt
detergent;
surfactant
edetic acidEdetic Acid: A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive.ethylenediamine derivative;
polyamino carboxylic acid;
tetracarboxylic acid
anticoagulant;
antidote;
chelator;
copper chelator;
geroprotector
ampicillinampicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-amino-2-phenylacetamido group.

Ampicillin: Semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum antibiotic.
beta-lactam antibiotic;
penicillin;
penicillin allergen
antibacterial drug
purpurinpurpurin : A trihydroxyanthraquinone derived from anthracene by substitution with oxo groups at C-9 and C-10 and with hydroxy groups at C-1, C-2 and C-4.

purpurin: from Rubiaceae plants; structure in first source
trihydroxyanthraquinonebiological pigment;
histological dye;
plant metabolite
salicylanilidesalicylanilide : An amide of salicylic acid and of aniline; it is therefore both a salicylamide and an anilide.

salicylanilide: RN given refers to parent cpd
benzanilide fungicide;
salicylamides;
salicylanilides
benzanilide
diphenylmethanediphenylmethane : A diarylmethane that is methane substituted by two phenyl groups.diarylmethane
benzethonium chloridebenzethonium chloride : A (synthetic) quaternary ammonium salt that is benzyldimethylamine in which the nitrogen is quaternised by a 2-{2-[p-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy}ethyl group, with chloride as the counter-ion. An antiseptic and disinfectant, it is active against a broad spectrum of bacteria, fungi, moulds and viruses.aromatic ether;
chloride salt;
quaternary ammonium salt
antibacterial agent;
antifungal agent;
antiseptic drug;
antiviral agent;
disinfectant
sterogenolcetylpyridinium bromide : A pyridinium salt that has N-hexadecylpyridinium as the cation and bromide as the anion.

hexadecylpyridinium bromide: structure in first source
bromide salt;
pyridinium salt
antiseptic drug;
EC 2.7.11.18 (myosin-light-chain kinase) inhibitor;
surfactant
evans blueEvans blue : An organic sodium salt that is the tetrasodium salt of 6,6'-{(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis[diazene-2,1-diyl]}bis(4-amino-5-hydroxynaphthalene-1,3-disulfonate). It is sometimes used as a counterstain, especially in fluorescent methods to suppress background autofluorescence.

Evans Blue: An azo dye used in blood volume and cardiac output measurement by the dye dilution method. It is very soluble, strongly bound to plasma albumin, and disappears very slowly.
organic sodium saltfluorochrome;
histological dye;
sodium channel blocker;
teratogenic agent
lithocholic acidlithocholate : A bile acid anion that is the conjugate base of lithocholic acid.

lithocholic acid : A monohydroxy-5beta-cholanic acid with a alpha-hydroxy substituent at position 3. It is a bile acid obtained from chenodeoxycholic acid by bacterial action.

Lithocholic Acid: A bile acid formed from chenodeoxycholate by bacterial action, usually conjugated with glycine or taurine. It acts as a detergent to solubilize fats for absorption and is itself absorbed. It is used as cholagogue and choleretic.
bile acid;
C24-steroid;
monohydroxy-5beta-cholanic acid
geroprotector;
human metabolite;
mouse metabolite
plumbaginplumbagin : A hydroxy-1,4-naphthoquinone that is 1,4-naphthoquinone in which the hydrogens at positions 2 and 5 are substituted by methyl and hydroxy groups, respectively.

plumbagin: a superoxide anion generator
hydroxy-1,4-naphthoquinone;
phenols
anticoagulant;
antineoplastic agent;
immunological adjuvant;
metabolite
hesperidinhesperidin : A disaccharide derivative that consists of hesperetin substituted by a 6-O-(alpha-L-rhamnopyranosyl)-beta-D-glucopyranosyl moiety at position 7 via a glycosidic linkage.

Hesperidin: A flavanone glycoside found in CITRUS fruit peels.
3'-hydroxyflavanones;
4'-methoxyflavanones;
dihydroxyflavanone;
disaccharide derivative;
flavanone glycoside;
monomethoxyflavanone;
rutinoside
mutagen
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
gentian violetcrystal violet : An organic chloride salt that is the monochloride salt of crystal violet cation. It has been used in creams for the topical treatment of bacterial and fungal infections, being effective against some Gram-positive bacteria (notably Staphylococcus species) and some pathogenic fungi (including Candida species) but use declined following reports of animal carcinogenicity. It has also been used for dying wood, silk, and paper, as well as a histological stain.

Gentian Violet: A dye that is a mixture of violet rosanilinis with antibacterial, antifungal, and anthelmintic properties.
organic chloride saltanthelminthic drug;
antibacterial agent;
antifungal agent;
antiseptic drug;
histological dye
glycylglycinedipeptide;
dipeptide zwitterion
human metabolite
3-hydroxyflavone3-hydroxyflavone: structure given in first source

flavonol : A monohydroxyflavone that is the 3-hydroxy derivative of flavone.
flavonols;
monohydroxyflavone
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
erythromycinerythromycin : Any of several wide-spectrum macrolide antibiotics obtained from actinomycete Saccharopolyspora erythraea (formerly known as Streptomyces erythraeus).

erythromycin A : An erythromycin that consists of erythronolide A having 2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl and 3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl residues attahced at positions 4 and 6 respectively.

Erythromycin: A bacteriostatic antibiotic macrolide produced by Streptomyces erythreus. Erythromycin A is considered its major active component. 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
agaric acidagaric acid: adenine nucleotide translocase antagonist
ethidium bromideorganic bromide saltgeroprotector;
intercalator;
trypanocidal drug
vancomycinvancomycin : A complex glycopeptide from Streptomyces orientalis. It inhibits a specific step in the synthesis of the peptidoglycan layer in the Gram-positive bacteria Staphylococcus aureus and Clostridium difficile.

Vancomycin: Antibacterial obtained from Streptomyces orientalis. It is a glycopeptide related to RISTOCETIN that inhibits bacterial cell wall assembly and is toxic to kidneys and the inner ear.
glycopeptideantibacterial drug;
antimicrobial agent;
bacterial metabolite
4-octylphenol4-octylphenol : A member of the class of phenols that is phenol which is substituted at the para- position by an octyl group.

4-octylphenol: xenoestrogen
phenolsmetabolite;
surfactant;
xenoestrogen
cetylpyridinium chloridehydrate
danazolDanazol: A synthetic steroid with antigonadotropic and anti-estrogenic activities that acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Danazol has been used in the treatment of endometriosis and some benign breast disorders.17beta-hydroxy steroid;
terminal acetylenic compound
anti-estrogen;
estrogen antagonist;
geroprotector
metergolinemetergoline : An ergoline alkaloid that is the N-benzyloxycarbonyl derivative of lysergamine. A 5-HT2 antagonist. Also 5-HT1 antagonist and 5-HT1D ligand. Has moderate affinity for 5-HT6 and high affinity for 5-HT7.

Metergoline: A dopamine agonist and serotonin antagonist. It has been used similarly to BROMOCRIPTINE as a dopamine agonist and also for MIGRAINE DISORDERS therapy.
carbamate ester;
ergoline alkaloid
dopamine agonist;
geroprotector;
serotonergic antagonist
rafoxanideRafoxanide: Veterinary anthelmintic for grazing animals; used to treat fluke, hookworm and other infestations.
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
substance ppeptideneurokinin-1 receptor agonist;
neurotransmitter;
vasodilator agent
closantelclosantel : A racemate comprising equimolar amounts of (R)- and (S)-clostanel. An anthelmintic, it is used (as the dihydrate of the sodium salt) in veterinary medicine for the treatment of fluke and nematode infections.

closantel: structure

N-{5-chloro-4-[(4-chlorophenyl)(cyano)methyl]-2-methylphenyl}-2-hydroxy-3,5-diiodobenzamide : An aromatic amide resulting from the formal condensation of the carboxy group of 3,5-diiodosalicylic acid with the amino group of aniline substituted at positions 2, 4, and 5 by methyl, (4-chlorophenyl)(cyano)methyl, and methyl groups respectively.
aromatic amide;
monocarboxylic acid amide;
monochlorobenzenes;
nitrile;
organoiodine compound;
phenols
paroxetineparoxetine : A benzodioxole that consists of piperidine bearing 1,3-benzodioxol-5-yloxy)methyl and 4-fluorophenyl substituents at positions 3 and 4 respectively; the (3S,4R)-diastereomer. Highly potent and selective 5-HT uptake inhibitor that binds with high affinity to the serotonin transporter (Ki = 0.05 nM). Ki values are 1.1, 350 and 1100 nM for inhibition of [3H]-5-HT, [3H]-l-NA and [3H]-DA uptake respectively. Displays minimal affinity for alpha1-, alpha2- or beta-adrenoceptors, 5-HT2A, 5-HT1A, D2 or H1 receptors at concentrations below 1000 nM, however displays weak affinity for muscarinic ACh receptors (Ki = 42 nM). Antidepressant and anxiolytic in vivo.

Paroxetine: A serotonin uptake inhibitor that is effective in the treatment of depression.
aromatic ether;
benzodioxoles;
organofluorine compound;
piperidines
antidepressant;
anxiolytic drug;
hepatotoxic agent;
P450 inhibitor;
serotonin uptake inhibitor
captoprilcaptopril : A L-proline derivative in which L-proline is substituted on nitrogen with a (2S)-2-methyl-3-sulfanylpropanoyl group. It is used as an anti-hypertensive ACE inhibitor drug.

Captopril: A potent and specific inhibitor of PEPTIDYL-DIPEPTIDASE A. It blocks the conversion of ANGIOTENSIN I to ANGIOTENSIN II, a vasoconstrictor and important regulator of arterial blood pressure. Captopril acts to suppress the RENIN-ANGIOTENSIN SYSTEM and inhibits pressure responses to exogenous angiotensin.
alkanethiol;
L-proline derivative;
N-acylpyrrolidine;
pyrrolidinemonocarboxylic acid
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
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
quinaprilquinapril : A member of the class of isoquinolines that is (3S)-2-L-alanyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid in which the alpha-amino group of the alanyl residue has been substituted by a 1-ethoxycarbonyl-4-phenylbutan-2-yl group (the all-S isomer). A prodrug for quinaprilat (by hydrolysis of the ethyl ester to the corresponding carboxylic acid), it is used as an angiotensin-converting enzyme inhibitor (ACE inhibitor) used (generally as the hydrochloride salt) for the treatment of hypertension and congestive heart failure.

Quinapril: A tetrahydroisoquinoline derivative and ANGIOTENSIN CONVERTING ENZYME inhibitor that is used in the treatment of HYPERTENSION and HEART FAILURE.
dicarboxylic acid monoester;
ethyl ester;
isoquinolines;
tertiary carboxamide
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
prodrug
adapaleneadapalene : A naphthoic acid that is CD437 in which the phenolic hydroxy group has been converted to its methyl ether.

Adapalene: A naphthalene derivative that has specificity for RETINOIC ACID RECEPTORS. It is used as a DERMATOLOGIC AGENT for the treatment of ACNE.
adamantanes;
monocarboxylic acid;
naphthoic acid
dermatologic drug;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor;
non-steroidal anti-inflammatory drug
fosinoprilatfosinoprilat : A phosphinic acid-containing N-acyl derivative of (4S)-cyclohexyl-L-proline. An inhibitor of angiotensin converting enzyme (ACE), it is used as the phosphinate ester pro-drug fosinopril for treatment of hypertension and chronic heart failure.

fosinoprilat: active phosphinic acid metabolite of prodrug fosenopril, which is activated by esterases in vivo; structure given in first source; binds zinc with phosphinic acid group
L-proline derivative;
phosphinic acids
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) 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
epigallocatechin gallate(-)-epigallocatechin 3-gallate : A gallate ester obtained by the formal condensation of gallic acid with the (3R)-hydroxy group of (-)-epigallocatechin.

epigallocatechin gallate: a steroid 5alpha-reductase inhibitor and antimutagen in green tea (Camellia sinensis)
flavans;
gallate ester;
polyphenol
antineoplastic agent;
antioxidant;
apoptosis inducer;
geroprotector;
Hsp90 inhibitor;
neuroprotective agent;
plant metabolite
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
rentiaprilrentiapril: RN given refers to cpd without isomeric designation
libenzaprillibenzapril: structure given in first sourcedipeptide
6-hydroxyflavone6-hydroxyflavone: antioxidant; structure in first sourcehydroxyflavonoid
madecassic acidmonocarboxylic acid;
pentacyclic triterpenoid;
tetrol
antioxidant;
plant metabolite
corilagincorilagin : An ellagitannin with a hexahydroxydiphenoyl group bridging over the 3-O and 6-O of the glucose core.

corilagin: isolated from Geranii herba
ellagitannin;
gallate ester
antihypertensive agent;
antioxidant;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
non-steroidal anti-inflammatory drug
leucyl-alanineLeu-Ala : A dipeptide composed of L-leucine and L-alanine joined by a peptide linkage.dipeptidemetabolite
alanylprolinealanylproline: RN given refers to all (L)-isomerdipeptide;
dipeptide zwitterion
metabolite
phenylalanylphenylalanylamide
moexiprilpeptide
glycyltryptophanGly-Trp : A dipeptide formed from glycine and L-tryptophan residues.

glycyltryptophan: RN given refers to (L)-isomer
dipeptidemetabolite
zofenoprilzofenopril : A proline derivative that is 4-(phenylsulfanyl)-L-proline in which the amine proton is replaced by a (2S)-3-(benzoylsulfanyl)-2-methylpropanoyl group. A prodrug for zofenoprilat.

zofenopril: structure given in first source; SQ 26900 refers to K salt & SQ 26991 to Ca salt
aryl sulfide;
L-proline derivative;
N-acyl-L-amino acid;
thioester
anticonvulsant;
apoptosis inhibitor;
cardioprotective agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
prodrug;
vasodilator agent
glycyltyrosineGly-Tyr : A dipeptide composed of glycine and L-tyrosine joined by a peptide linkage.dipeptidemetabolite
glycylleucineGly-Leu : A dipeptide composed of glycine and L-leucine joined by a peptide linkage.dipeptide;
dipeptide zwitterion
metabolite
alanyltyrosineAla-Tyr : A dipeptide composed of L-alanine and L-tyrosine joined by a peptide linkage.

alanyltyrosine: tyrosine source; RN given refers to (L)-isomer
dipeptidemetabolite
glycyl-l-phenylalanineGly-Phe : A dipeptide formed from glycine and L-phenylalanine residues.

glycylphenylalanine: RN given refers to (DL)-isomer
dipeptide;
dipeptide zwitterion
human metabolite;
metabolite
alanylphenylalaninealanylphenylalanine: RN given refers to (L-Ala-L-PheAla)-isomerdipeptidemetabolite
tryptophylglycineTrp-Gly : A dipeptide formed from L-tryptophan and glycine residues.dipeptidemetabolite
glycylaspartic acidglycylaspartic acid: RN given refers to (L)-isomerdipeptidemetabolite
n-glycylglutamic acidGly-Glu : A dipeptide formed from glycyl and L-glutamic acid residues.

N-glycylglutamic acid: RN given refers to (L)-isomer
dipeptidemetabolite
histidylglycineHis-Gly : A dipeptide formed from L-histidine and glycine residues.

histidylglycine: RN given refers to all (L)-isomer
dipeptidemetabolite
cp 96345CP 96345: structure given in first source; potent nonpeptide antagonist of the substance P (NK1) receptor; CP 96344 is enantiomer of CP 96345
sr 48968SR 48968: structure given in first source; neurokinin A antagonist; tachykinin receptor antagonist; SR 48965 is the inactive R-enantiomer of SR 48968
7,7-diphenyl-2-(1-imino-2-(2-methoxyphenyl)ethyl)perhydroisoindol-4-one7,7-diphenyl-2-(1-imino-2-(2-methoxyphenyl)ethyl)perhydroisoindol-4-one: structure given in first source; RP 68651 is the inactive (3aS,7aS)-isomer; substance P antagonist
perindoprilperindopril : An alpha-amino acid ester that is the ethyl ester of N-{(2S)-1-[(2S,3aS,7aS)-2-carboxyoctahydro-1H-indol-1-yl]-1-oxopropan-2-yl}-L-norvaline

Perindopril: An angiotensin-converting enzyme inhibitor. It is used in patients with hypertension and heart failure.
alpha-amino acid ester;
dicarboxylic acid monoester;
ethyl ester;
organic heterobicyclic compound
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
quinaprilatquinaprilat : A dicarboxylic acid resulting from the hydrolysis of the ethyl ester group of quinapril to give the corresponding dicarboxylic acid. The active angiotensin-converting enzyme inhibitor (ACE inhibitor) of the prodrug quinapril.

quinaprilat: metabolite of quinapril
dicarboxylic acid;
isoquinolines;
tertiary carboxamide
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
vasodilator agent
senktide
benzoylphenylalanyl-alanyl-prolinebenzoylphenylalanyl-alanyl-proline: synthetic angiotensin converting enzyme substrate
way 100135WAY 100135: a selective antagonist at presynaptic & postsynaptic 5-HT(1A) receptors; structure given in first sourcepiperazines
sb 204070aSB 204070A: structure given in first source; a selective 5-HT(4) receptor antagonist
sq 28603SQ 28603: a selective neutral endopeptidase inhibitor
glycylglutamineglycylglutamine: inhibitory neuropeptide derived from beta-endorphin; RN given refers to (L)-isomerdipeptide;
dipeptide zwitterion
metabolite;
protective agent
neurokinin a(4-10), tyr(5)-trp(6,8,9)-lys(10)-neurokinin A(4-10), Tyr(5)-Trp(6,8,9)-Lys(10)-: tachykinin receptor antagonist
(2-methoxy-5-tetrazol-1-ylbenzyl)(2-phenylpiperidin-3-yl)amine(2-methoxy-5-tetrazol-1-ylbenzyl)(2-phenylpiperidin-3-yl)amine: structure given in first source
2-(4-morpholinyl)-4h-1-benzopyran-4-one2-(4-morpholinyl)-4H-1-benzopyran-4-one: an aminochromone; exhibits both antiproliferative and antichemotactic activity in vitro
l 703606L 703606: structure given in first source
3,5-bis(trifluoromethyl)benzyl n-acetyltryptophan3,5-bis(trifluoromethyl)benzyl N-acetyltryptophan: structure given in first source; substance P and neurokinin receptor antagonist
l 7330603-((3,5-bis(trifluoromethyl)phenyl)methyloxy)-2-phenylpiperidine: RN given refers to (2S-cis)-isomer; L-733,061 is pharmacologically inactive; structure in first sourcepiperidines
3-(mercaptomethyl)-2-oxo-1-piperidineacetic acid
retrothiorphanretrothiorphan: RETRO-THIORPHAN was an EN to THIORPHAN 1989-93
a 58365aA 58365A: from Streptomyces chromofuscus; structure given in second source
prolineproline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2.

Proline: A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.
amino acid zwitterion;
glutamine family amino acid;
L-alpha-amino acid;
proline;
proteinogenic amino acid
algal metabolite;
compatible osmolytes;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite
docetaxelhydrate;
secondary alpha-hydroxy ketone
antineoplastic agent
phenylalanylargininePhe-Arg : A dipeptide composed of L-phenylalanine and L-arginine joined by a peptide linkage.

phenylalanylarginine: RN given refers to all (L)-isomer
dipeptidemetabolite
aspartylglycineAsp-Gly : A dipeptide composed of L-aspartic acid and glycine joined by a peptide linkage.dipeptidemetabolite
rostafuroxinrostafuroxin: structure in first source
compound 20
win 64821WIN 64821: a dimerized Trp-Phe condensate; structurally similar to verticillins and chaetocins; a nonpeptide neurokinin antagonist; structure given in first source; substance P antagonist
bb3497BB3497: peptide deformylase inhibitor; structure in first source
substance p, pro(9)-substance P, Pro(9)-: RN given refers to the (L-Pro)-isomer; RN for cpd without isomeric designation not available 3/91
neurokinin a (4-10), nle(10)-
substance p, sar(9)-met(o2)(11)-substance P, Sar(9)-Met(O2)(11)-: a neurokinin-1 receptor agonist
n-valyltryptophanN-valyltryptophan: RN given refers to (L)-isomerpeptide
histidylleucineHis-Leu : A dipeptide formed from L-histidine and L-leucine residues.dipeptide;
dipeptide zwitterion
metabolite
ceronaprilceronapril: structure given in first source; RN given for (S)-isomerN-acyl-amino acid
succinylprolineN-acyl-amino acid
ranatachykinin aranatachykinin A: a tachykinin in frog (Rana catesbeiana) brain and intestine
sr 142806
gossypol acetic acid
nsc 889154-pregnen-21-ol-3,20-dione-21-(4-bromobenzenesufonate): a tyrosyl-DNA phosphodiesterase inhibitor; structure in first source
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
bradykininoligopeptidehuman blood serum metabolite;
vasodilator agent
naringenin(S)-naringenin : The (S)-enantiomer of naringenin.(2S)-flavan-4-one;
naringenin
expectorant;
plant metabolite
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
digitoxindigitoxin : A cardenolide glycoside in which the 3beta-hydroxy group of digitoxigenin carries a 2,6-dideoxy-beta-D-ribo-hexopyranosyl-(1->4)-2,6-dideoxy-beta-D-ribo-hexopyranosyl-(1->4)-2,6-dideoxy-beta-D-ribo-hexopyranosyl trisaccharide chain.

Digitoxin: A cardiac glycoside sometimes used in place of DIGOXIN. It has a longer half-life than digoxin; toxic effects, which are similar to those of digoxin, are longer lasting. (From Martindale, The Extra Pharmacopoeia, 30th ed, p665)
cardenolide glycosideEC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor
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
actinoninactinonin: natural hydroxamic acid, pseudopeptide antibiotic isolated from Streptomyces species; structure
tretinoinall-trans-retinoic acid : A retinoic acid in which all four exocyclic double bonds have E- (trans-) geometry.

retinoic acid : A retinoid consisting of 3,7-dimethylnona-2,4,6,8-tetraenoic acid substituted at position 9 by a 2,6,6-trimethylcyclohex-1-en-1-yl group (geometry of the four exocyclic double bonds is not specified).

Tretinoin: An important regulator of GENE EXPRESSION during growth and development, and in NEOPLASMS. Tretinoin, also known as retinoic acid and derived from maternal VITAMIN A, is essential for normal GROWTH; and EMBRYONIC DEVELOPMENT. An excess of tretinoin can be teratogenic. It is used in the treatment of PSORIASIS; ACNE VULGARIS; and several other SKIN DISEASES. It has also been approved for use in promyelocytic leukemia (LEUKEMIA, PROMYELOCYTIC, ACUTE).
retinoic acid;
vitamin A
anti-inflammatory agent;
antineoplastic agent;
antioxidant;
AP-1 antagonist;
human metabolite;
keratolytic drug;
retinoic acid receptor agonist;
retinoid X receptor agonist;
signalling molecule
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
phosphoramidonphosphoramidon : A dipeptide isolated from the cultures of Streptomyces tanashiensis.

phosphoramidon: a membrane metallo-endopeptidase & endothelin-converting enzyme inhibitor; thermolysin inhibitor from culture filtrate of Streptomyces tanashiensis; structure
deoxyaldohexose phosphate;
dipeptide
bacterial metabolite;
EC 3.4.24.11 (neprilysin) inhibitor;
EC 3.4.24.71 (endothelin-converting enzyme 1) inhibitor
mln 47602-(1-carboxy-2-(3-(3,5-dichlorobenzyl)-3H-imidazol-4-yl)ethylamino)-4-methylpentanoic acid: MLN-4760 is the (S,S)-isomer; an ACE2 inhibitor; structure in first source

MLN-4760 : A L-histidine derivative that is L-histidine in which a hydrogen of the primary amino group is substituted by a (1S)-1-carboxy-3-methylbutyl group and the ring NH group is substituted by a 3,5-dichlorobenzyl group. It is a potent and selective human angiotensin-converting enzyme 2 (ACE2) inhibitor (IC50 = 0.44 nM) which was in clinical development for the treatment of ulcerative colitis.
dichlorobenzene;
L-histidine derivative;
L-leucine derivative
anti-inflammatory agent;
EC 3.4.17.23 (angiotensin-converting enzyme 2) inhibitor
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
riboflavinvitamin B2 : Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B2 deficiency. Symptoms associated with vitamin B2 deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms).flavin;
vitamin B2
anti-inflammatory agent;
antioxidant;
cofactor;
Escherichia coli metabolite;
food colouring;
fundamental metabolite;
human urinary metabolite;
mouse metabolite;
photosensitizing agent;
plant metabolite
4'-methoxychalcone4'-methoxychalcone: RN given refers to compound with no isomeric designationchalcones
bucillamineorganic molecular entity
omapatrilatomapatrilat: structure in first sourcedipeptide
(1S,2R)-2-(octylamino)-1-[4-(propan-2-ylthio)phenyl]-1-propanolalkylbenzene
4-chloro-3-nitro-1-(phenylmethyl)-2-quinolinonequinolines
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
enclomipheneEnclomiphene: The trans or (E)-isomer of clomiphene.
n-glycylalanineGly-Ala : A dipeptide formed from glycine and L-alanine residues.dipeptidemetabolite
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
glycylvalineglycylvaline: RN given refers to (DL)-isomerdipeptidehuman metabolite
tamoxifenstilbenoid;
tertiary amino compound
angiogenesis inhibitor;
antineoplastic agent;
bone density conservation agent;
EC 1.2.3.1 (aldehyde oxidase) inhibitor;
EC 2.7.11.13 (protein kinase C) inhibitor;
estrogen antagonist;
estrogen receptor antagonist;
estrogen receptor modulator
Geraniintannin
glycylprolineGly-Pro : A dipeptide consisting of L-proline having a glycyl residue attached to its alpha-amino group.dipeptide;
dipeptide zwitterion
metabolite
spiraprilatSCH 33861: RN given refers to (8S-(7(R*(R*)),8R*))-isomer

spiraprilat : An azaspiro compound that is spirapril in which the ethyl ester group has been hydrolysed to the corresponding carboxylic acid group. It is the active metabolite of the angiotensin-converting enzyme (ACE) inhibitor spirapril.
azaspiro compound;
dicarboxylic acid;
dipeptide;
dithioketal;
pyrrolidinecarboxylic acid;
secondary amino compound;
tertiary carboxamide
antihypertensive agent;
drug metabolite;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
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
glycyllysineGly-Lys : A dipeptide formed from glycine and L-lysine residues.

glycyllysine: RN given refers to (L)-isomer
dipeptidemetabolite
fh535FH535: inhibits Wnt signalingsulfonamide
digitoxigenindigitoxigenin : A 5beta-cardenolide that is 5beta-cardanolide with hydroxy substituents at the 3beta- and 14beta-positions and double bond unsaturation at C(20)-C(22).

Digitoxigenin: 3 beta,14-Dihydroxy-5 beta-card-20(22)enolide. A cardenolide which is the aglycon of digitoxin. Synonyms: Cerberigenin; Echujetin; Evonogenin; Thevetigenin.
14beta-hydroxy steroid;
3beta-hydroxy steroid
sitagliptinsitagliptin : A triazolopyrazine that exhibits hypoglycemic activity.triazolopyrazine;
trifluorobenzene
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
environmental contaminant;
hypoglycemic agent;
serine proteinase inhibitor;
xenobiotic
thiorphan
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
gossypetingossypetin : A hexahydroxyflavone having the hydroxy groups placed at the 3-, 3'-, 4'-, 5- 7- and 8-positions.

gossypetin: inhibits activity of penicillinase enzyme in E coli
7-hydroxyflavonol;
hexahydroxyflavone
plant metabolite
vitamin d 2Ergocalciferols: Derivatives of ERGOSTEROL formed by ULTRAVIOLET RAYS breaking of the C9-C10 bond. They differ from CHOLECALCIFEROL in having a double bond between C22 and C23 and a methyl group at C24.

vitamin D2 : A vitamin D supplement and has been isolated from alfalfa.
hydroxy seco-steroid;
seco-ergostane;
vitamin D
bone density conservation agent;
nutraceutical;
plant metabolite;
rodenticide
cholecalciferolcalciol : A hydroxy seco-steroid that is (5Z,7E)-9,10-secocholesta-5,7,10(19)-triene in which the pro-S hydrogen at position 3 has been replaced by a hydroxy group. It is the inactive form of vitamin D3, being hydroxylated in the liver to calcidiol (25-hydroxyvitamin D3), which is then further hydroxylated in the kidney to give calcitriol (1,25-dihydroxyvitamin D3), the active hormone.

Cholecalciferol: Derivative of 7-dehydroxycholesterol formed by ULTRAVIOLET RAYS breaking of the C9-C10 bond. It differs from ERGOCALCIFEROL in having a single bond between C22 and C23 and lacking a methyl group at C24.
D3 vitamins;
hydroxy seco-steroid;
seco-cholestane;
secondary alcohol;
steroid hormone
geroprotector;
human metabolite
montelukastmontelukast: a leukotriene D4 receptor antagonistaliphatic sulfide;
monocarboxylic acid;
quinolines
anti-arrhythmia drug;
anti-asthmatic drug;
leukotriene antagonist
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
norathyriolnorathyriol : A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1, 3, 6 and 7. Isolated from Garcinia mangostana and Maclura pomifera, it exhibits inhibitory activity against protein kinase C.

norathyriol: from Gentinanaceae; has vasorelaxing action on rat thoracic aorta; structure given in first source
polyphenol;
xanthones
antineoplastic agent;
EC 2.7.11.13 (protein kinase C) inhibitor;
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
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
7-hydroxyflavone7-hydroxyflavone : A hydroxyflavonoid in which the flavone nucleus is substituted at position 7 by a hydroxy group.hydroxyflavonoid
4-hydroxychalcone4-hydroxychalcone : A member of the class of chalcones that is trans-chalcone substituted by a hydroxy group at position 4.

4-hydroxychalcone: structure in first source
chalcones;
phenols
antihypertensive agent;
plant metabolite
4'-hydroxychalcone4'-hydroxychalcone : A member of the class of chalcones that is trans-chalcone substituted by a hydroxy group at position 4'.

4'-hydroxychalcone: inhibits TNFalpha-induced NF-κB activation; structure in first source
chalcones;
phenols
anti-inflammatory agent;
antineoplastic agent
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
phenoxybenzamine hydrochlorideorganic molecular entity
cp 999943-(2-methoxybenzylamino)-2-phenylpiperidine: selective NK(1) receptor antagonist; CP-100263 is the inactive enantiomer
benzyloxycarbonyl-phe-ala-fluormethylketonecathepsin B inhibitor : A cysteine protease inhibitor which inhibits cathepsin B (EC 3.4.22.1).
nalbuphineNalbuphine: A narcotic used as a pain medication. It appears to be an agonist at KAPPA RECEPTORS and an antagonist or partial agonist at MU RECEPTORS.organic heteropentacyclic compoundmu-opioid receptor antagonist;
opioid analgesic
neurokinin aNeurokinin A: A mammalian neuropeptide of 10 amino acids that belongs to the tachykinin family. It is similar in structure and action to SUBSTANCE P and NEUROKININ B with the ability to excite neurons, dilate blood vessels, and contract smooth muscles, such as those in the BRONCHI.
neurokinin bNeurokinin B: A mammalian neuropeptide of 10 amino acids that belongs to the tachykinin family. It is similar in structure and action to SUBSTANCE P and NEUROKININ A with the ability to excite neurons, dilate blood vessels, and contract smooth muscles, such as those in the URINARY BLADDER and UTERUS.polypeptide
sb 223412SB 223412: SB-223412 is the (S)-(-)-isomer; RN given for (S)-isomer; structure in first source
seglitideseglitide: more potent than somatostatin for inhibition of insulin, glucagon & growth hormone release; used experimentally in treatment of Alzheimer's disease; somatostatin receptor antagonist
vinorelbineacetate ester;
methyl ester;
organic heteropentacyclic compound;
organic heterotetracyclic compound;
ring assembly;
vinca alkaloid
antineoplastic agent;
photosensitizing agent
oxiconazoleoxiconazole : An oxime O-ether that is the 2,4-dichlorobenzyl ether of the oxime obtained by formal condensation of hydroxylamine with the carbonyl group of acetopnenone in which the phenyl group is substituted by chlorines at positions 2 and 4, and in which one of the hydrogens of the methyl group is replaced by a 1H-imidazol-1-yl group. An antifungal agent, it is used (generally as the nitrate salt) in creams and powders for the topical treatment of fungal skin infections.

oxiconazole: RN given refers to parent cpd(Z)-isomer; structure given in first source
conazole antifungal drug;
dichlorobenzene;
imidazole antifungal drug;
imidazoles;
oxime O-ether
antiinfective agent
lisinoprilLisinopril: One of the ANGIOTENSIN-CONVERTING ENZYME INHIBITORS (ACE inhibitors), orally active, that has been used in the treatment of hypertension and congestive heart failure.dipeptideEC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
benazeprilbenazepril : A benzazepine that is benazeprilat in which the carboxy group of the 2-amino-4-phenylbutanoic acid moiety has been converted to the corresponding ethyl ester. It is used (generally as its hydrochloride salt) as a prodrug for the angiotensin-converting enzyme inhibitor benazeprilat in the treatment of hypertension and heart failure.

benazepril: structure given in first source
benzazepine;
dicarboxylic acid monoester;
ethyl ester;
lactam
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
prodrug
ramiprilquark : Quarks comprise one of two classes of the fundamental particles. Quarks possess fractional electric charges and are not observed in free state. The word "quark" first appears in James Joyce's Finnegans Wake and has been chosen by Murray Gell-Mann as a name for fundamental building blocks of particles.

ramipril : A dipeptide that is the prodrug for ramiprilat, the active metabolite obtained by hydrolysis of the ethyl ester group. An angiotensin-converting enzyme (ACE) inhibitor, used to treat high blood pressure and congestive heart failure.

Ramipril: A long-acting angiotensin-converting enzyme inhibitor. It is a prodrug that is transformed in the liver to its active metabolite ramiprilat.
azabicycloalkane;
cyclopentapyrrole;
dicarboxylic acid monoester;
dipeptide;
ethyl ester
bradykinin receptor B2 agonist;
cardioprotective agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
matrix metalloproteinase inhibitor;
prodrug
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
enalaprilenalapril : A dicarboxylic acid monoester that is ethyl 4-phenylbutanoate in which a hydrogen alpha to the carboxy group is substituted by the amino group of L-alanyl-L-proline (S-configuration).

Enalapril: An angiotensin-converting enzyme inhibitor that is used to treat HYPERTENSION and HEART FAILURE.
dicarboxylic acid monoester;
dipeptide
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
geroprotector;
prodrug
enalaprilat anhydrousenalaprilat (anhydrous) : Enalapril in which the ethyl ester group has been hydrolysed to the corresponding carboxylic acid. Enalaprilat is an angiotensin-converting enzyme (ACE) inhibitor and is used (often in the form of its prodrug, enalapril) in the treatment of hypertension and heart failure, for reduction of proteinuria and renal disease in patients with nephropathies, and for the prevention of stroke, myocardial infarction, and cardiac death in high-risk patients. Unlike enalapril, enalaprilat is not absorbed by mouth but is given by intravenous injection, usually as the dihydrate.

enalaprilat dihydrate : The dihydrate form of enalaprilat, an angiotensin-converting enzyme (ACE) inhibitor that is used (often in the form of its prodrug, enalapril) in the treatment of hypertension and heart failure, for reduction of proteinuria and renal disease in patients with nephropathies, and for the prevention of stroke, myocardial infarction, and cardiac death in high-risk patients. Unlike enalapril, enalaprilat is not absorbed by mouth but is administered by intravenous injection.

Enalaprilat: The active metabolite of ENALAPRIL and one of the potent, intravenously administered, ANGIOTENSIN-CONVERTING ENZYME INHIBITORS. It is an effective agent for the treatment of essential hypertension and has beneficial hemodynamic effects in heart failure. The drug produces renal vasodilation with an increase in sodium excretion.
dicarboxylic acid;
dipeptide
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
imidaprilimidapril : A member of the class of imidazolidines that is (4S)-1-methyl-2-oxoimidazolidine-4-carboxylic acid in which the hydrogen of the imidazolidine nitrogen has been substituted by (1S)-1-{[(2S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl]amino}ethyl group. It is the prodrug for imidaprilat, an ACE inhibitor used for the treatment of chronic heart failure.

imidapril: structure given in first source
dicarboxylic acid monoester;
dipeptide;
ethyl ester;
imidazolidines;
N-acylurea;
secondary amino compound
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
prodrug
imidaprilatimidaprilat : A member of the class of imidazolidines that is imidapril in which the ethyl ester group has been hydrolysed to the corresponding acid group. It is the active metabolite of imidapril used to treat hypertension.

imidaprilat: structure given in first source; active metabolite of imidapril
dicarboxylic acid;
dipeptide;
imidazolidines;
N-acylurea;
secondary amino compound
antihypertensive agent;
drug metabolite;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
1,3,5,6-tetrahydroxyxanthone1,3,5,6-tetrahydroxyxanthone: from roots of Cudrania cochinchinensis
alanylalanineL-alanyl-L-alanine : A dipeptide consisting of two L-alanine units joined by a peptide linkage.dipeptide;
dipeptide zwitterion
Mycoplasma genitalium metabolite
trandolapriltrandolapril : A heterobicylic compound that is (2S,3aR,7aS)-1-[(2S)-2-aminopropanoyl]octahydro-1H-indole-2-carboxylic acid in which the hydrogen of the amino group is substituted by a (2R)-1-ethoxy-1-oxo-4-phenylbutan-2-yl group. It is a angiotensin-converting enzyme inhibitor and a prodrug used for the treatment of hypertension.dicarboxylic acid monoester;
dipeptide;
ethyl ester;
organic heterobicyclic compound;
secondary amino compound;
tertiary carboxamide
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
prodrug
gr 94800GR 94800: a selective NK2 heptapeptide antagonist
biphalinbiphalin: enkephalin dimer; two fragments of Ala(2)-enkephalin are connected by a diamine bridge to form above cpd; structure given in first source
n(alpha)-phosphorylalanylprolineN(alpha)-phosphorylalanylproline: inhibitor of angiotensin converting enzyme; RN given refers to (L)-isomer
alpha-aspartylalaninealpha-aspartylalanine: found in pig brain

Asp-Ala : A dipeptide formed from L-alpha-aspartyl and L-valine residues.
dipeptidemetabolite
alanyltyrosineTyr-Ala : A dipeptide formed from L-tyrosine and L-alanine residues.dipeptidemetabolite
22,23-dihydroavermectin b(1)a22,23-dihydroavermectin B(1)a: C48H74O14; major component of IVERMECTIN; MW 875.093; structure given in first source

22,23-dihydroavermectin B1a : A macrocyclic lactone that is avermectin B1a in which the double bond present in the spirocyclic ring system has been reduced to a single bond. It is the major component of ivermectin.
macrocyclic lactone;
spiroketal
uk 81,252sampatrilat: structure in first source
prolylglycineL-prolylglycine : A dipeptide consisting of glycine having an L-prolyl group attached to its alpha-amino nitrogen.

prolylglycine: RN given refers to (L)-isomer
dipeptide;
dipeptide zwitterion
avermectin b(1)aavermectin B(1)a: RN given refers to avermectin B(1)a; see also avermectins & demethylavermectinsavermectin
netupitantnetupitant : A monocarboxylic acid amide obtained by formal condensation of the carboxy group of 2-[3,5-bis(trifluoromethyl)phenyl]-2-methylpropanoic acid with the secondary amino group of N-methyl-4-(2-methylphenyl)-6-(4-methylpiperazin-1-yl)pyridin-3-amine; an antiemetic used in combination with palonosetron hydrochloride (under the trade name Akynzeo) to treat nausea and vomiting in patients undergoing cancer chemotherapy.

netupitant: orally active neurokinin-1 receptor antagonist
aminopyridine;
monocarboxylic acid amide;
N-alkylpiperazine;
N-arylpiperazine;
organofluorine compound;
toluenes
antiemetic;
neurokinin-1 receptor antagonist
gw 1929GW 1929: activates peroxisome proliferator-activated receptor-gamma; structure in first sourcebenzophenones
sb 222200quinolines
sb 218795SB 218795: structure in first sourcequinolines
nifurtimoxNifurtimox: A nitrofuran thiazine that has been used against TRYPANOSOMIASIS.nitrofuran antibiotic
substance p (6-11), tyr(6)-d-phe(7)-d-his(9)-substance P (6-11), Tyr(6)-D-Phe(7)-D-His(9)-: substance P antagonist
vofopitant
pmx 53
glutamylalanineGlu-Ala : A dipeptide formed from L-alpha-glutamyl and L-alanine residues.dipeptidemetabolite
glutaminyl-glycineGln-Gly : A dipeptide formed from L-glutamine and glycine residues.dipeptidemetabolite
methionylglycineMet-Gly : A dipeptide formed from L-methionine and glycine residues.

methionylglycine: RN given refers to (L)-isomer
dipeptidemetabolite
phenylalanyl-valineVal-Phe : A dipeptide formed from L-valine and L-phenylalanine residues.dipeptidemetabolite
alanylglycinedipeptide;
dipeptide zwitterion
metabolite
valyltyrosineVal-Tyr : A dipeptide formed from L-valine and L-tyrosine residues.

valyltyrosine: from sardine muscle hydrolyzate
dipeptidemetabolite
lysylglycineLys-Gly : A dipeptide formed from L-lysine and glycine residues.

lysylglycine: structure in first source
dipeptidemetabolite
glycylhistidineGly-His : A dipeptide composed of glycine and L-histidine joined by a peptide linkage.

glycylhistidine: RN given refers to (L)-isomer
dipeptide;
dipeptide zwitterion
metabolite
isoleucyl-tyrosineIle-Tyr : A dipeptide formed from L-isoleucine and L-tyrosine residues.

isoleucyl-tyrosine: a dipeptide with antihypertensive effect
dipeptidemetabolite
fosinopril
pd 154075PD 154075: a non-peptide tachykinin NK1 receptor antagonist; structure given in first source
edotecarin
(2s,3s)-2-phenyl-3-((5-trifluoromethoxy-2-methoxy)benzylamino)piperidine(2S,3S)-2-phenyl-3-((5-trifluoromethoxy-2-methoxy)benzylamino)piperidine: structure given in first source
rxp 407RXP 407: inhibits angiotensin I converting enzyme
men 11558
vestipitant
prolylvalineVal-Pro : A dipeptide formed from L-valine and L-proline residues.dipeptidemetabolite
ly 306740LY 306740: LY-307679 is the inactive enantiomer
sdz nkt 343SDZ NKT 343: structure in first source
orvepitant
zd 6021ZD 6021: structure in first source
cgs 35066CGS 35066: an endothelin-converting enzyme-1 inhibitor; structure in first source
men 11420
nicotianamine(S,S,S)-nicotianamine : The (S,S,S)-stereoisomer of nicotianamine.

nicotianamine: an angiotensin I-converting enzyme inhibitor from soy sauce
amino acid zwitterion;
nicotianamine
chelator;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
plant metabolite
pexacerfontpyrazolopyridine
tak 637TAK 637: structure in first source
sr 144190SR 144190: structure in first source
casopitantpiperidines
nkp 608
dnk 333DNK 333: a dual neurokinin NK1/NK2 receptor antagonist; structure in first source
4-n-butyl-1-(4-(2-methylphenyl)-4-oxo-1-butyl)-piperidine hydrogen chloride
3,4,5,6-tetrahydroxyxanthone
rolapitantazaspiro compound;
ether;
organofluorine compound;
piperidines;
pyrrolidin-2-ones
antiemetic;
neurokinin-1 receptor antagonist
eledoisinEledoisin: A peptide extracted from the posterior salivary glands of certain small octopi (Eledone spp., Mollusca), or obtained by synthesis. Its actions resemble those of SUBSTANCE P; it is a potent vasodilator and increases capillary permeability. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1364)peptide
spiroquinazolinespiroquinazoline: isolated from the fungus Aspergillus flavipes; structure given in first source; substance P antagonist
phakellistatin 2phakellistatin 2: isolated from the marine sponge Phakellia carteri; structure in first source
bufokininbufokinin: binds mammalian tachykinin receptors
s 3304S 3304: structure in first source
erastinerastin : A member of the class of quinazolines that is quinazolin-4(3H)-one in which the hydrogens at positions 2 and 3 are replaced by 1-{4-[(4-chlorophenoxy)acetyl]piperazin-1-yl}ethyl and 2-ethoxyphenyl groups, respectively. It is an inhibitor of voltage-dependent anion-selective channels (VDAC2 and VDAC3) and a potent ferroptosis inducer.

erastin: an antineoplastic agent; structure in first source
aromatic ether;
diether;
monochlorobenzenes;
N-acylpiperazine;
N-alkylpiperazine;
quinazolines;
tertiary carboxamide
antineoplastic agent;
ferroptosis inducer;
voltage-dependent anion channel inhibitor
ditryptophenalineditryptophenaline: structure in first source
way 207024
ibodutant6-methylbenzo(b)thiophene-2-carboxylic acid (1-(2-phenyl-((1-(tetrahydropyran-4-ylmethyl)piperidin-4-ylmethyl)carbamoyl)ethylcarbamoyl)cyclophenyl)amide: a tachykinin NK2 receptor antagonist; structure in first source
digitoxigenin monodigitoxosidedigitoxigenin monodigitoxoside: RN given refers to (ribo-3beta,5beta)-isomer
evomonosideevomonoside : A cardenolide glycoside consisting of digitoxigenin having an alpha-L-rhamnosyl moiety attached at the O(3)-position.

evomonoside: a cytotoxic cardiac glycoside from Lepidium apetalum; RN refers to (3beta,5beta)-isomer
cardenolide glycoside
erythrosineerythrosin B : An organic sodium salt that is the disodium salt of 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-8a,10a-dihydroxanthen-9-yl)benzoic acid.

Erythrosine: A tetraiodofluorescein used as a red coloring in some foods (cherries, fish), as a disclosure of DENTAL PLAQUE, and as a stain of some cell types. It has structural similarity to THYROXINE.
shamixanthoneshamixanthone : A pyranoxanthene that is 2,3-dihydropyrano[3,2-a]xanthen-12(1H)-one bearing hydroxy substituents at positions 1 and 11 as well as a prop-1-en-2-yl group at position 2, a methyl substituent at position 5 and a 3,3-dimethylallyl group at position 8. A secondary metabolite produced by Aspergillus nidulans.cyclic ketone;
phenols;
pyranoxanthene
metabolite
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
ly-146032heterodetic cyclic peptide;
lipopeptide;
lipopeptide antibiotic;
macrocycle;
macrolide
antibacterial drug;
bacterial metabolite;
calcium-dependent antibiotics
serlopitant
halisulfate 1halisulfate 1: an isocitrate lyase inhibitor sesterterpene sulfate from sponge, Hippospongia sp.; structure in first sourceorganic molecular entitymetabolite
grassystatin agrassystatin A: isolated from a cyanobacterium, identified as Lyngbya cf.; structure in first source
nitd 609NITD 609: an antimalarial and coccidiostat; structure in first source
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
6-o-palmitoylascorbic acidfatty acid ester
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
clozapineclozapine : A benzodiazepine that is 5H-dibenzo[b,e][1,4]diazepine substituted by a chloro group at position 8 and a 4-methylpiperazin-1-yl group at position 11. It is a second generation antipsychotic used in the treatment of psychiatric disorders like schizophrenia.

Clozapine: A tricylic dibenzodiazepine, classified as an atypical antipsychotic agent. It binds several types of central nervous system receptors, and displays a unique pharmacological profile. Clozapine is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent.
benzodiazepine;
N-arylpiperazine;
N-methylpiperazine;
organochlorine compound
adrenergic antagonist;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
environmental contaminant;
GABA antagonist;
histamine antagonist;
muscarinic antagonist;
second generation antipsychotic;
serotonergic antagonist;
xenobiotic
hemateinhematein : An organic heterotetracyclic compound that is -6a,7-dihydrobenzo[b]indeno[1,2-d]pyran-9-one carrying four hydroxy substituents at positions 3, 4, 6a and 10.

hematein: structure
aprepitantaprepitant : A morpholine-based antiemetic, which is or the prevention of acute and delayed nausea and vomiting associated with initial and repeat courses of highly emetogenic cancer chemotherapy. Aprepitant is a selective high-affinity antagonist of human substance P/neurokinin 1 (NK1) receptors.

Aprepitant: A morpholine neurokinin-1 (NK1) receptor antagonist that is used in the management of nausea and vomiting caused by DRUG THERAPY, and for the prevention of POSTOPERATIVE NAUSEA AND VOMITING.
(trifluoromethyl)benzenes;
cyclic acetal;
morpholines;
triazoles
antidepressant;
antiemetic;
neurokinin-1 receptor antagonist;
peripheral nervous system drug;
substance P receptor antagonist
l 742694L 742694: a neurokinin-1 receptor antagonist; structure given in first source