Target type: biologicalprocess
The chemical reactions and pathways involving amyloid-beta, a glycoprotein associated with Alzheimer's disease, and its precursor, amyloid precursor protein (APP). [GOC:ai]
Amyloid-beta (Aβ) metabolic process is a complex and multifaceted pathway involved in the production, processing, and clearance of Aβ peptides, small protein fragments that play a critical role in the pathogenesis of Alzheimer's disease.
**1. Production:** Aβ is generated from the amyloid precursor protein (APP), a transmembrane protein found in neurons and other cells. APP undergoes sequential proteolytic cleavage by two enzymes: β-secretase (BACE1) and γ-secretase.
* **β-secretase cleavage:** BACE1 cleaves APP within its extracellular domain, generating a soluble fragment called sAPPβ and a membrane-bound fragment called C99.
* **γ-secretase cleavage:** γ-secretase, a multiprotein complex, cleaves C99 at the transmembrane domain, releasing Aβ peptides of varying lengths, primarily Aβ40 and Aβ42.
**2. Aggregation:** Aβ peptides are highly hydrophobic and prone to aggregation, forming oligomers and fibrils.
* **Monomers:** Individual Aβ peptides initially exist as monomers.
* **Oligomers:** Monomers associate with each other, forming small, soluble aggregates called oligomers. These oligomers are highly toxic and believed to be the primary mediators of neuronal damage in Alzheimer's disease.
* **Fibrils:** Oligomers further aggregate into larger, insoluble fibrils, which are the hallmark of amyloid plaques found in the brains of Alzheimer's patients.
**3. Clearance:**
* **Degradation:** Aβ peptides can be degraded by various proteases, including neprilysin, insulin-degrading enzyme (IDE), and plasmin.
* **Efflux:** Aβ can be transported out of the brain through the blood-brain barrier by transporters like P-glycoprotein.
* **Glial uptake:** Microglia, the brain's resident immune cells, can phagocytose and degrade Aβ.
**4. Dysregulation in Alzheimer's Disease:**
* **Increased production:** Elevated levels of BACE1 or mutations in APP can lead to increased Aβ production.
* **Reduced clearance:** Deficiencies in Aβ degradation or efflux mechanisms can contribute to Aβ accumulation.
* **Abnormal aggregation:** Mutations in Aβ or other proteins can promote aberrant aggregation, leading to the formation of toxic oligomers and fibrils.
**The delicate balance between Aβ production, aggregation, and clearance is crucial for maintaining brain health. Dysregulation in this pathway, resulting in Aβ accumulation, is a key driver of Alzheimer's disease pathology.**'
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Protein | Definition | Taxonomy |
---|---|---|
Beta-secretase 2 | A beta-secretase 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9Y5Z0] | Homo sapiens (human) |
Beta-secretase 1 | A beta-secretase 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P56817] | Homo sapiens (human) |
Insulin-degrading enzyme | An insulin-degrading enzyme that is encoded in the genome of human. [PRO:DNx, UniProtKB:P14735] | 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) |
Neprilysin | A neprilysin that is encoded in the genome of human. [PRO:WCB, UniProtKB:P08473] | Homo sapiens (human) |
Renin | A renin that is encoded in the genome of human. [PRO:DNx, UniProtKB:P00797] | Homo sapiens (human) |
Compound | Definition | Classes | Roles |
---|---|---|---|
coumarin | 2H-chromen-2-one: coumarin derivative | coumarins | fluorescent dye; human metabolite; plant metabolite |
phloroglucinol | phloroglucinol : A benzenetriol with hydroxy groups at position 1, 3 and 5. Phloroglucinol: A trinitrobenzene derivative with antispasmodic properties that is used primarily as a laboratory reagent. | benzenetriol; phenolic donor | algal metabolite |
gallic acid | gallate : A trihydroxybenzoate that is the conjugate base of gallic acid. | trihydroxybenzoic acid | antineoplastic agent; antioxidant; apoptosis inducer; astringent; cyclooxygenase 2 inhibitor; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; geroprotector; human xenobiotic metabolite; plant metabolite |
8-phenyltheophylline | 8-phenyltheophylline: purinergic P1 receptor antagonist | ||
acetazolamide | Acetazolamide: One of the CARBONIC ANHYDRASE INHIBITORS that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337) | monocarboxylic acid amide; sulfonamide; thiadiazoles | anticonvulsant; diuretic; EC 4.2.1.1 (carbonic anhydrase) inhibitor |
theophylline | dimethylxanthine | adenosine receptor antagonist; anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; drug metabolite; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; fungal metabolite; human blood serum metabolite; immunomodulator; muscle relaxant; vasodilator agent | |
5-methoxypsoralen | 5-methoxypsoralen : A 5-methoxyfurocoumarin that is psoralen substituted by a methoxy group at position 5. 5-Methoxypsoralen: A linear furanocoumarin that has phototoxic and anti-inflammatory properties, with effects similar to METHOXSALEN. It is used in PUVA THERAPY for the treatment of PSORIASIS. | 5-methoxyfurocoumarin; organic heterotricyclic compound; psoralens | hepatoprotective agent; plant metabolite |
buspirone | buspirone : 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 |
caffeine | purine 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 | |
chloroquine | chloroquine : An aminoquinoline that is quinoline which is substituted at position 4 by a [5-(diethylamino)pentan-2-yl]amino group at at position 7 by chlorine. It is used for the treatment of malaria, hepatic amoebiasis, lupus erythematosus, light-sensitive skin eruptions, and rheumatoid arthritis. Chloroquine: The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses. | aminoquinoline; organochlorine compound; secondary amino compound; tertiary amino compound | anticoronaviral agent; antimalarial; antirheumatic drug; autophagy inhibitor; dermatologic drug |
thiorphan | Thiorphan: A potent inhibitor of membrane metalloendopeptidase (ENKEPHALINASE). Thiorphan potentiates morphine-induced ANALGESIA and attenuates naloxone-precipitated withdrawal symptoms. | N-acyl-amino acid | |
donepezil | 2-[(1-benzylpiperidin-4-yl)methyl]-5,6-dimethoxyindan-1-one : A member of the class of indanones that is 5,6-dimethoxyindan-1-one which is substituted at position 2 by an (N-benzylpiperidin-4-yl)methyl group. donepezil : A racemate comprising equimolar amounts of (R)- and (S)-donepezil. A centrally acting reversible acetylcholinesterase inhibitor, its main therapeutic use is in the treatment of Alzheimer's disease where it is used to increase cortical acetylcholine. Donepezil: An indan and piperidine derivative that acts as a selective and reversible inhibitor of ACETYLCHOLINESTERASE. Donepezil is highly selective for the central nervous system and is used in the management of mild to moderate DEMENTIA in ALZHEIMER DISEASE. | aromatic ether; indanones; piperidines; racemate | EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; nootropic agent |
ebselen | ebselen : A benzoselenazole that is 1,2-benzoselenazol-3-one carrying an additional phenyl substituent at position 2. Acts as a mimic of glutathione peroxidase. | benzoselenazole | anti-inflammatory drug; antibacterial agent; anticoronaviral agent; antifungal agent; antineoplastic agent; antioxidant; apoptosis inducer; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor; EC 1.3.1.8 [acyl-CoA dehydrogenase (NADP(+))] inhibitor; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor; EC 2.5.1.7 (UDP-N-acetylglucosamine 1-carboxyvinyltransferase) inhibitor; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor; EC 3.1.3.25 (inositol-phosphate phosphatase) inhibitor; EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor; EC 3.5.4.1 (cytosine deaminase) inhibitor; EC 5.1.3.2 (UDP-glucose 4-epimerase) inhibitor; enzyme mimic; ferroptosis inhibitor; genotoxin; hepatoprotective agent; neuroprotective agent; radical scavenger |
furfurylamine | |||
p-hydroxyamphetamine | p-Hydroxyamphetamine: Amphetamine metabolite with sympathomimetic effects. It is sometimes called alpha-methyltyramine, which may also refer to the meta isomer, gepefrine. | amphetamines | |
1-methyl-3-isobutylxanthine | 1-Methyl-3-isobutylxanthine: A potent cyclic nucleotide phosphodiesterase inhibitor; due to this action, the compound increases cyclic AMP and cyclic GMP in tissue and thereby activates CYCLIC NUCLEOTIDE-REGULATED PROTEIN KINASES 3-isobutyl-1-methylxanthine : An oxopurine that is xanthine which is substituted at positions 1 and 3 by methyl and isobutyl groups, respectively. | 3-isobutyl-1-methylxanthine | |
losartan | losartan : 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 |
methoxsalen | methoxsalen : A member of the class of psoralens that is 7H-furo[3,2-g]chromen-7-one in which the 9 position is substituted by a methoxy group. It is a constituent of the fruits of Ammi majus. Like other psoralens, trioxsalen causes photosensitization of the skin. It is administered topically or orally in conjunction with UV-A for phototherapy treatment of vitiligo and severe psoriasis. Methoxsalen: A naturally occurring furocoumarin compound found in several species of plants, including Psoralea corylifolia. It is a photoactive substance that forms DNA ADDUCTS in the presence of ultraviolet A irradiation. | aromatic ether; psoralens | antineoplastic agent; cross-linking reagent; dermatologic drug; photosensitizing agent; plant metabolite |
nevirapine | nevirapine : A dipyridodiazepine that is 5,11-dihydro-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepine which is substituted by methyl, oxo, and cyclopropyl groups at positions 4, 6, and 11, respectively. A non-nucleoside reverse transcriptase inhibitor with activity against HIV-1, it is used in combination with other antiretrovirals for the treatment of HIV infection. Nevirapine: A potent, non-nucleoside reverse transcriptase inhibitor used in combination with nucleoside analogues for treatment of HIV INFECTIONS and AIDS. | cyclopropanes; dipyridodiazepine | antiviral drug; HIV-1 reverse transcriptase inhibitor |
rabeprazole | Rabeprazole: 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 |
rolipram | pyrrolidin-2-ones | antidepressant; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor | |
tyramine | monoamine molecular messenger; primary amino compound; tyramines | EC 3.1.1.8 (cholinesterase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter | |
pirinixic acid | pirinixic acid: structure | aryl sulfide; organochlorine compound; pyrimidines | |
edetic acid | Edetic 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 |
ficusin | Ficusin: A naturally occurring furocoumarin, found in PSORALEA. After photoactivation with UV radiation, it binds DNA via single and double-stranded cross-linking. psoralen : The simplest member of the class of psoralens that is 7H-furo[3,2-g]chromene having a keto group at position 7. It has been found in plants like Psoralea corylifolia and Ficus salicifolia. | psoralens | plant metabolite |
scoparone | scoparone : A member of the class of coumarins that is esculetin in which the two hydroxy groups at positions 6 and 7 are replaced by methoxy groups. It is a major constituent of the Chinese herbal medicine Yin Chen Hao, and exhibits a variety of pharmacological activities such as anti-inflammatory, anti-allergic, and anti-tumor activities. scoparone: structure | aromatic ether; coumarins | anti-allergic agent; anti-inflammatory agent; antihypertensive agent; antilipemic drug; immunosuppressive agent; plant metabolite |
pyrazolanthrone | anthra[1,9-cd]pyrazol-6(2H)-one : A member of the class of anthrapyrazoles that is anthra[1,9-cd]pyrazole substituted at position 6 by an oxo group. An inhibitor of c-Jun N-terminal kinase. pyrazolanthrone: JNK (c-Jun N-terminal kinase) inhibitor; structure in first source | anthrapyrazole; aromatic ketone; cyclic ketone | antineoplastic agent; c-Jun N-terminal kinase inhibitor; geroprotector |
2-chloroadenosine | 5-chloroformycin A: structure given in first source | purine nucleoside | |
catechin | (+)-catechin : The (+)-enantiomer of catechin and a polyphenolic antioxidant plant metabolite. catechin : Members of the class of hydroxyflavan that have a flavan-3-ol skeleton and its substituted derivatives. Catechin: An antioxidant flavonoid, occurring especially in woody plants as both (+)-catechin and (-)-epicatechin (cis) forms. rac-catechin : A racemate comprising equimolar amounts of (+)- and (-)-catechin | catechin | antioxidant; plant metabolite |
9-(2,3-dihydroxy-3-methylbutoxy)-4-methoxy-7h-furo(3,2-g)(1)benzopyran-7-one | 9-(2,3-dihydroxy-3-methylbutoxy)-4-methoxy-7H-furo(3,2-g)(1)benzopyran-7-one: isolated from Angelica dahurica (Umbelliferae); structure in first source | psoralens | |
imperatorin | imperatorin : A member of the class of psoralens that is psoralen substituted by a prenyloxy group at position 8. Isolated from Angelica dahurica and Angelica koreana, it acts as a acetylcholinesterase inhibitor. imperatorin: tumor necrosis factor antagonist; furanocoumarin from West African medicinal plant Clausena anisata; structure in Negwer, 5th ed, #3005 | psoralens | EC 3.1.1.7 (acetylcholinesterase) inhibitor; metabolite |
osthol | osthol: from Cnidium monnieri and Angelica pubescens (both Apiaceae); structure given in first source | botanical anti-fungal agent; coumarins | metabolite |
ninhydrin | ninhydrin : A member of the class of indanones that is indane-1,3-dione bearing two additional hydroxy substituents at position 2. Ninhydrin: 2,2-Dihydroxy-1H-indene-1,3-(2H)-dione. Reagent toxic to skin and mucus membranes. It is used in chemical assay for peptide bonds, i.e., protein determinations and has radiosensitizing properties. | aromatic ketone; beta-diketone; indanones; ketone hydrate | colour indicator; human metabolite |
angelicin | angelicin: used as tranquillizer; sedative; or anticonvulsant; structure | furanocoumarin | |
herniarin | herniarin : A member of the class of coumarins that is coumarin substituted by a methoxy group at position 7. herniarin: methoxy analog of umbelliferone; structure | coumarins | fluorochrome |
glycylglycine | dipeptide; dipeptide zwitterion | human metabolite | |
1,2-Dihydroquinolin-2-imine | aminoquinoline | ||
aviprin | aviprin: isolated from Angelica dahurica; structure in first source | furanocoumarin | metabolite |
oxypeucadanin, (s)-(-)-isomer | epoxide; furanocoumarin; lactone | plant metabolite | |
cefmetazole | cefmetazole : A second-generation cephalosporin antibiotic having N(1)-methyltetrazol-5-ylthiomethyl, {[(cyanomethyl)sulfanyl]acetyl}amino and methoxy side-groups at positions 3, 7beta and 7alpha respectively of the parent cephem bicyclic structure. Cefmetazole: A semisynthetic cephamycin antibiotic with a broad spectrum of activity against both gram-positive and gram-negative microorganisms. It has a high rate of efficacy in many types of infection and to date no severe side effects have been noted. | cephalosporin | antibacterial drug |
captopril | captopril : 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 |
quinapril | quinapril : 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 |
enalkiren | peptide | ||
fosinoprilat | fosinoprilat : 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 |
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 |
gallocatechol | (+)-gallocatechin : A gallocatechin that has (2R,3S)-configuration. It is found in green tea and bananas. gallocatechin : A catechin that is a flavan substituted by hydroxy groups at positions 3, 3', 4', 5, 5' and 7 (the trans isomer). It is isolated from Acacia mearnsii. gallocatechol: structure give in first source; RN given for (trans-(+-))-omer; inhibits DNA-dependent DNA & RNA polymerases | gallocatechin | antioxidant; metabolite; radical scavenger |
xanthotoxol | 8-hydroxyfurocoumarin : A furanocoumarin which bears a hydroxy group at position 8. | 8-hydroxyfurocoumarin | |
xanthyletine | xanthyletine: structure | coumarins | |
1,2,3,4,6-pentakis-O-galloyl-beta-D-glucose | 1,2,3,4,6-pentakis-O-galloyl-beta-D-glucose : A galloyl-beta-D-glucose compound having five galloyl groups in the 1-, 2-, 3-, 4- and 6-positions. pentagalloylglucose: pentahydroxy gallic acid ester of glucose; a phytogenic antineoplastic agent and antibacterial agent | gallate ester; galloyl beta-D-glucose | anti-inflammatory agent; antineoplastic agent; geroprotector; hepatoprotective agent; plant metabolite; radiation protective agent; radical scavenger |
telmisartan | telmisartan : 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 |
toxoflavin | toxoflavin : A pyrimidotriazine that is 1,6-dimethyl-1,5,6,7-tetrahydropyrimido[5,4-e][1,2,4]triazine with oxo groups at positions 5 and 7. toxoflavin: azapteridine antibiotic; structure | carbonyl compound; pyrimidotriazine | antibacterial agent; antineoplastic agent; apoptosis inducer; bacterial metabolite; toxin; virulence factor; Wnt signalling inhibitor |
isopimpinellin | isopimpinellin: from Ruta graveolens & Heracleum lanatum; structure | psoralens | |
isoimperatorin | isoimperatorin : A member of the class of psoralens that is psoralen substituted by a prenyloxy group at position 5. Isolated from Angelica dahurica and Angelica koreana, it acts as a acetylcholinesterase inhibitor. isoimperatorin: tumor necrosis factor antagonist isolated from Glehniae root | psoralens | EC 3.1.1.7 (acetylcholinesterase) inhibitor; metabolite |
seselin | seselin: structure in first source | coumarins | metabolite |
suberosin | suberosin : A member of the class of coumarins in which the coumarin ring is substituted at positions 6 and 7 by a 3-methylbut-2-en-1-yl group and a methoxy group, respectively. A natural product found in Citropsis articulata. suberosin: has anti-inflammatory activity | aromatic ether; coumarins | anticoagulant; plant metabolite |
rentiapril | rentiapril: RN given refers to cpd without isomeric designation | ||
libenzapril | libenzapril: structure given in first source | dipeptide | |
vexibinol | sophoraflavanone 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 |
(-)-catechin | (-)-catechin : The (-)-enantiomer of catechin. | catechin | metabolite |
heraclenol | heraclenol: isolated from the herb Huanghuaren | ||
corilagin | corilagin : 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 |
1-aminoisoquinoline | |||
rivastigmine | carbamate ester; tertiary amino compound | cholinergic drug; EC 3.1.1.8 (cholinesterase) inhibitor; neuroprotective agent | |
leucyl-alanine | Leu-Ala : A dipeptide composed of L-leucine and L-alanine joined by a peptide linkage. | dipeptide | metabolite |
alanylproline | alanylproline: RN given refers to all (L)-isomer | dipeptide; dipeptide zwitterion | metabolite |
5-amino-1,3,4-thiadiazole-2-sulfonamide | 5-amino-1,3,4-thiadiazole-2-sulfonamide: structure in first source | ||
moexipril | peptide | ||
glycyltryptophan | Gly-Trp : A dipeptide formed from glycine and L-tryptophan residues. glycyltryptophan: RN given refers to (L)-isomer | dipeptide | metabolite |
columbianetin, (s)-isomer | (S)-columbianetin : The (S)-(+)-enantiomer of columbianetin. | columbianetin | |
zofenopril | zofenopril : 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 |
glycyltyrosine | Gly-Tyr : A dipeptide composed of glycine and L-tyrosine joined by a peptide linkage. | dipeptide | metabolite |
glycylleucine | Gly-Leu : A dipeptide composed of glycine and L-leucine joined by a peptide linkage. | dipeptide; dipeptide zwitterion | metabolite |
alanyltyrosine | Ala-Tyr : A dipeptide composed of L-alanine and L-tyrosine joined by a peptide linkage. alanyltyrosine: tyrosine source; RN given refers to (L)-isomer | dipeptide | metabolite |
glycyl-l-phenylalanine | Gly-Phe : A dipeptide formed from glycine and L-phenylalanine residues. glycylphenylalanine: RN given refers to (DL)-isomer | dipeptide; dipeptide zwitterion | human metabolite; metabolite |
phenylisopropyladenosine | aromatic amine; benzenes; hydrocarbyladenosine; purine nucleoside; secondary amino compound | adenosine A1 receptor agonist; neuroprotective agent | |
alanylphenylalanine | alanylphenylalanine: RN given refers to (L-Ala-L-PheAla)-isomer | dipeptide | metabolite |
tryptophylglycine | Trp-Gly : A dipeptide formed from L-tryptophan and glycine residues. | dipeptide | metabolite |
glycylaspartic acid | glycylaspartic acid: RN given refers to (L)-isomer | dipeptide | metabolite |
phellopterin | phellopterin: a naturally occurring furanocoumarin found in roots of Angelica dahurica; structure in first source | psoralens | |
n-glycylglutamic acid | Gly-Glu : A dipeptide formed from glycyl and L-glutamic acid residues. N-glycylglutamic acid: RN given refers to (L)-isomer | dipeptide | metabolite |
histidylglycine | His-Gly : A dipeptide formed from L-histidine and glycine residues. histidylglycine: RN given refers to all (L)-isomer | dipeptide | metabolite |
perindopril | perindopril : 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 |
quinaprilat | quinaprilat : 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 |
benzoylphenylalanyl-alanyl-proline | benzoylphenylalanyl-alanyl-proline: synthetic angiotensin converting enzyme substrate | ||
way 100135 | WAY 100135: a selective antagonist at presynaptic & postsynaptic 5-HT(1A) receptors; structure given in first source | piperazines | |
gefitinib | aromatic ether; monochlorobenzenes; monofluorobenzenes; morpholines; quinazolines; secondary amino compound; tertiary amino compound | antineoplastic agent; epidermal growth factor receptor antagonist | |
n(6)-(3-iodobenzyl)-5'-n-methylcarboxamidoadenosine | 3-iodobenzyl-5'-N-methylcarboxamidoadenosine : A derivative of adenosine in which the 5'-hydroxymethyl group is replaced by N-ethylcarboxamido and one of the hydrogens of the exocyclic amino function is substituted by a 3-iodobenzyl group. N(6)-(3-iodobenzyl)-5'-N-methylcarboxamidoadenosine: structure given in first source; a selective A(3) adenosine receptor agonist | adenosines; monocarboxylic acid amide; organoiodine compound | adenosine A3 receptor agonist |
sq 28603 | SQ 28603: a selective neutral endopeptidase inhibitor | ||
glycylglutamine | glycylglutamine: inhibitory neuropeptide derived from beta-endorphin; RN given refers to (L)-isomer | dipeptide; dipeptide zwitterion | metabolite; protective agent |
kelatorphan | kelatorphan: inhibitor of enkephalin metabolism; structure given in first source | ||
(3-(n-hydroxy)carboxamido-2-benzylpropanoyl)glycine | |||
phlorofucofuroeckol a | phlorofucofuroeckol A: phlorotannin from Ecklonia kurome; structure given in first source | ||
2-(4-morpholinyl)-4h-1-benzopyran-4-one | 2-(4-morpholinyl)-4H-1-benzopyran-4-one: an aminochromone; exhibits both antiproliferative and antichemotactic activity in vitro | ||
cgs 26303 | CGS 26303: a potent non-peptidic inhibitor of neutral endopeptidase capable of protecting atrial natriuretic peptide from enzymatic degradation; structure given in first source | ||
3-(mercaptomethyl)-2-oxo-1-piperidineacetic acid | |||
retrothiorphan | retrothiorphan: RETRO-THIORPHAN was an EN to THIORPHAN 1989-93 | ||
h 142 | H 142: decapeptide inhibitor of human renin; RN given refers to all L-isomer | ||
a 58365a | A 58365A: from Streptomyces chromofuscus; structure given in second source | ||
proline | proline : 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 |
eckol | eckol : A phlorotannin that is oxanthrene-1,3,6,8-tetrol substituted by a 3,5-dihydroxyphenoxy moiety at position 4. Isolated from the marine brown alga, Ecklonia cava, it exhibits antioxidant activity. eckol: structure given in first source; isolated from brown alga Ecklonia kurome Okamura; inhibitor of alpha 2-antiplasmin | phlorotannin | antioxidant; metabolite |
phenylalanylarginine | Phe-Arg : A dipeptide composed of L-phenylalanine and L-arginine joined by a peptide linkage. phenylalanylarginine: RN given refers to all (L)-isomer | dipeptide | metabolite |
aspartylglycine | Asp-Gly : A dipeptide composed of L-aspartic acid and glycine joined by a peptide linkage. | dipeptide | metabolite |
compound 20 | |||
bb3497 | BB3497: peptide deformylase inhibitor; structure in first source | ||
n-valyltryptophan | N-valyltryptophan: RN given refers to (L)-isomer | peptide | |
(+)-epicatechin | (+)-epicatechin : A catechin that is flavan carrying five hydroxy substituents at positions 3, 3', 4', 5 and 7 (the 2S,3S-stereoisomer). | catechin; polyphenol | cyclooxygenase 1 inhibitor; plant metabolite |
histidylleucine | His-Leu : A dipeptide formed from L-histidine and L-leucine residues. | dipeptide; dipeptide zwitterion | metabolite |
ceronapril | ceronapril: structure given in first source; RN given for (S)-isomer | N-acyl-amino acid | |
succinylproline | N-acyl-amino acid | ||
a-130a | |||
marmesin | marmesin: RN given refers to (S)-isomer; nodakenetin is the (R)-isomer | marmesin | |
latifolin | latifolin: structure in first source | ||
bradykinin | oligopeptide | human blood serum metabolite; vasodilator agent | |
decursin | decursin: activates protein kinase C; isolated from the root of Angelica gigas; RN given for (S)-isomer; structure in first source | coumarins | |
decursinol | decursinol : An organic heterotricyclic compound that is 7,8-dihydro-2H,6H-pyrano[3,2-g]chromen-2-one substituted by a beta-hydroxy group at position 7 and two methyl groups at position 8. It is isolated from the roots of Angelica gigas and has been found to possess significant inhibitory activity against acetylcholinesterase enzyme (EC 3.1.1.7). | cyclic ether; delta-lactone; organic heterotricyclic compound; secondary alcohol | analgesic; antineoplastic agent; EC 3.1.1.7 (acetylcholinesterase) inhibitor; metabolite |
eugeniin | eugeniin : An ellagitannin isolated from the dried flower buds of Eugenia caryophyllata. It exhibits alpha-glucosidase inhibitory activity and antiviral activity against acyclovir and phosphonoacetic acid (PAA)-resistant herpes simplex virus type 1 (HSV-1) as well as the wild-type HSV-1. eugeniin: structure in first source | beta-D-glucoside; ellagitannin; gallate ester; lactone | anti-HSV-1 agent; antifungal agent; antineoplastic agent; EC 3.2.1.20 (alpha-glucosidase) inhibitor; metabolite |
candoxatrilat | candoxatrilat : A dicarboxylic acid monoamide obtained by formal condensation between the amino group of cis-4-aminocyclohexanecarboxylic acid and the cyclopentanecarboxylic acid group of 1-[(2S)-2-carboxy-3-(2-methoxyethoxy)propyl]cyclopentanecarboxylic acid. A potent inhibitor of neutral endopeptidase (NEP, neprilysin, EC 3.4.24.11), it is used as its 2,3-dihydro-1H-inden-5-yl ester prodrug in the treatment of chronic heart failure. candoxatrilat: USAN lists candoxatrilat (UK-73,967) with RN 123122-54-3 | ||
actinonin | actinonin: natural hydroxamic acid, pseudopeptide antibiotic isolated from Streptomyces species; structure | ||
phosphoramidon | phosphoramidon : 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 |
om99-2 | OM99-2: eight-residue memapsin 2 inhibitor; structure in first source | ||
om00-3 | OM00-3: second-generation 8-residue memapsin 2 inhibitor; structure in first source | ||
mln 4760 | 2-(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 |
cgp 38560a | |||
alitretinoin | Alitretinoin: A retinoid that is used for the treatment of chronic hand ECZEMA unresponsive to topical CORTICOSTEROIDS. It is also used to treat cutaneous lesions associated with AIDS-related KAPOSI SARCOMA. | retinoic acid | antineoplastic agent; keratolytic drug; metabolite; retinoid X receptor agonist |
heraclenin | heraclenin: from Chlamydomonas reinhardii; structure given in first source; RN given refers to (R)-isomer | ||
isoxanthohumol | isoxanthohumol: structure in first source | flavanones | |
lomatin | lomatin: isolated from Lomatium nutalli and various Umbelliferae; structure in first source | coumarins | |
2,2'-dihydroxychalcone | 2,2'-dihydroxychalcone: an antineoplastic agent; structure in first source | ||
isoliquiritigenin | chalcones | antineoplastic agent; biological pigment; EC 1.14.18.1 (tyrosinase) inhibitor; GABA modulator; geroprotector; metabolite; NMDA receptor antagonist | |
bucillamine | organic molecular entity | ||
omapatrilat | omapatrilat: structure in first source | dipeptide | |
cnidilin | cnidilin: from roots of Angelica pubescens Maxim. f. biserrata Shan et Yuan; structure in first source | psoralens | |
1,6-dimethyl-3-(2-pyridinyl)pyrimido[5,4-e][1,2,4]triazine-5,7-dione | pyrimidotriazine | ||
curcumin | curcumin : 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 |
1-(3,4-dichlorophenyl)-3-(5-pyridin-4-yl-1,3,4-thiadiazol-2-yl)urea | ureas | ||
[1-(2-phenoxyethyl)-3-indolyl]-(1-pyrrolidinyl)methanethione | indoles | ||
aurapten | aurapten: RN refers to (E)-isomer; structure given in first source auraptene : A member of the class of coumarins that is umbelliferone in which the phenolic hydrogen has been replaced by a geranyl group. Ii is isolated from several edible fruits and vegetables and exhibits a variety of therapeutic properties. | coumarins; monoterpenoid | antihypertensive agent; antineoplastic agent; antioxidant; apoptosis inducer; dopaminergic agent; EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor; gamma-secretase modulator; gastrointestinal drug; hepatoprotective agent; matrix metalloproteinase inhibitor; neuroprotective agent; plant metabolite; PPARalpha agonist; vulnerary |
n-glycylalanine | Gly-Ala : A dipeptide formed from glycine and L-alanine residues. | dipeptide | metabolite |
glycylvaline | glycylvaline: RN given refers to (DL)-isomer | dipeptide | human metabolite |
Geraniin | tannin | ||
dieckol | dieckol : A phlorotannin isolated from a brown alga Ecklonia cava which exhibits antioxidant, hepatoprotective and anticoagulant activities. dieckol: found in brown Eisenia and Ecklonia algae, have several pharmacologically beneficial effects such as anti-inflammation; structure in first source | aromatic ether; oxacycle; phlorotannin | anticoagulant; EC 3.2.1.20 (alpha-glucosidase) inhibitor; hepatoprotective agent; metabolite; radical scavenger |
glycylproline | Gly-Pro : A dipeptide consisting of L-proline having a glycyl residue attached to its alpha-amino group. | dipeptide; dipeptide zwitterion | metabolite |
spiraprilat | SCH 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 |
2-chloro-n(6)-(3-iodobenzyl)adenosine-5'-n-methyluronamide | 2-chloro-N(6)-(3-iodobenzyl)adenosine-5'-N-methyluronamide: structure given in first source | ||
byakangelicol | byakangelicol: RN given for (R)-isomer; structure in first source | psoralens | |
dasatinib | dasatinib (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 |
glycyllysine | Gly-Lys : A dipeptide formed from glycine and L-lysine residues. glycyllysine: RN given refers to (L)-isomer | dipeptide | metabolite |
angiotensin i, ile(5)- | angiotensin; peptide zwitterion | human metabolite; neurotransmitter agent | |
1,6-dimethyl-3-propylpyrimido[5,4-e][1,2,4]triazine-5,7-dione | pyrimidotriazine | ||
n-(6-chloropyridin-3-yl)-4-fluorobenzamide | N-(6-chloropyridin-3-yl)-4-fluorobenzamide: structure in first source | ||
sitagliptin | sitagliptin : 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 | |||
ginkgetin | ginkgetin : A biflavonoid that is the 7,4'-dimethyl ether derivative of amentoflavone. Isolated from Ginkgo biloba and Dioon, it exhibits anti-HSV-1, antineoplastic and inhibitory activities towards arachidonate 5-lipoxygenase and cyclooxygenase 2. ginkgetin: from Cephalotaxus drupacea; biflavone; active against HSV-1; structure given in first source | biflavonoid; hydroxyflavone; methoxyflavone; ring assembly | anti-HSV-1 agent; antineoplastic agent; cyclooxygenase 2 inhibitor; EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor; metabolite |
gallocatechin-3-gallate | (+)-gallocatechin gallate : A gallate ester obtained by formal condensation of the carboxy group of gallic acid with the (3S)-hydroxy group of (+)-gallocatechin. gallocatechin gallate: structure in first source | catechin; gallate ester; polyphenol | plant metabolite |
quercetin | 7-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 | |
bergaptol | 5-hydroxyfurocoumarin : A furanocoumarin which bears a hydroxy group at position 5. | 5-hydroxyfurocoumarin; psoralens | |
apigenin | Chamomile: 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. | trihydroxyflavone | antineoplastic agent; metabolite |
butein | chalcones; polyphenol | antineoplastic agent; antioxidant; EC 1.1.1.21 (aldehyde reductase) inhibitor; geroprotector; hypoglycemic agent; plant metabolite; radiosensitizing agent; tyrosine kinase inhibitor | |
esculetin | esculetin : A hydroxycoumarin that is umbelliferone in which the hydrogen at position 6 is substituted by a hydroxy group. It is used in filters for absorption of ultraviolet light. esculetin: used in filters for absorption of ultraviolet light; structure | hydroxycoumarin | antioxidant; plant metabolite; ultraviolet filter |
7-hydroxycoumarin | 7-oxycoumarin: derivatives have anti-oxidant properties umbelliferone : A hydroxycoumarin that is coumarin substituted by a hydroxy group ay position 7. | hydroxycoumarin | fluorescent probe; food component; plant metabolite |
amentoflavone | biflavonoid; hydroxyflavone; ring assembly | angiogenesis inhibitor; antiviral agent; cathepsin B inhibitor; P450 inhibitor; plant metabolite | |
cupressuflavone | cupressuflavone : A biflavonoid that is obtained by oxidative coupling of two molecules of apigenin resulting in a bond between positions C-8 of the two chromene rings respectively. Isolated from Cupressus sempervirens and Juniperus occidentalis, it exhibits free radical scavenging and antielastase activities. cupressuflavone: from Cupressus macrocarpa; structure in first source | biflavonoid; hydroxyflavone; ring assembly | EC 3.4.21.37 (leukocyte elastase) inhibitor; metabolite; radical scavenger |
hinokiflavone | hinokiflavone : A biflavonoid that is apigenin substituted by a 4-(5,7-dihydroxy-4-oxo-4H-chromen-2-yl)phenoxy group at position 6. A diflavonyl ether, it is isolated from Rhus succedanea and has been found to possess significant cytotoxic potential. hinokiflavone: from Rhus succedanea; structure given in first source | aromatic ether; biflavonoid; hydroxyflavone | antineoplastic agent; metabolite; neuroprotective agent |
norathyriol | norathyriol : 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 |
morin | morin : 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 |
morusin | morusin : An extended flavonoid that is flavone substituted by hydroxy groups at positions 5, 2' and 4', a prenyl group at position 3 and a 2,2-dimethyl pyran group across positions 7 and 8. morusin: from Morus root bark; structure given in first source | extended flavonoid; trihydroxyflavone | antineoplastic agent; plant metabolite |
myricetin | 7-hydroxyflavonol; hexahydroxyflavone | antineoplastic agent; antioxidant; cyclooxygenase 1 inhibitor; food component; geroprotector; hypoglycemic agent; plant metabolite | |
robustaflavone | robustaflavone : A biflavonoid that is obtained by oxidative coupling of two molecules of apigenin resulting in a bond between positions C-3 of the hydroxyphenyl ring and C-6 of the chromene ring. Isolated from Thuja orientalis and Rhus succedanea it exhibits antioxidant, cytotoxic and anti-hepatitis B activity. robustaflavone: bis-apigenin coupled at 6 and 3' positions; a potential non-nucleoside anti-hepatitis B agent; | biflavonoid; hydroxyflavone; ring assembly | anti-HBV agent; antineoplastic agent; antioxidant; metabolite |
sciadopitysin | sciadopitysin : A biflavonoid that is a 7, 4', 4'''-trimethyl ether derivative of amentoflavone. sciadopitysin: biflavonoid from Taxus celebica & Ginkgo biloba | biflavonoid; hydroxyflavone; methoxyflavone; ring assembly | bone density conservation agent; platelet aggregation inhibitor |
ellagic acid | catechols; 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 | |
n-oleoylethanolamine | N-oleoylethanolamine: ceramidase inhibitor oleoyl ethanolamide : An N-(long-chain-acyl)ethanolamine that is the ethanolamide of oleic acid. The monounsaturated analogue of the endocannabinoid anandamide. | endocannabinoid; N-(long-chain-acyl)ethanolamine; N-acylethanolamine 18:1 | EC 3.5.1.23 (ceramidase) inhibitor; geroprotector; PPARalpha agonist |
benzyloxycarbonyl-phe-ala-fluormethylketone | cathepsin B inhibitor : A cysteine protease inhibitor which inhibits cathepsin B (EC 3.4.22.1). | ||
n-(1-methyl-2-phenylethyl)adenosine, (s)-isomer | |||
bilobetin | bilobetin: a phospholipase A2 antagonist | flavonoid oligomer | |
7-demethylsuberosin | 7-demethylsuberosin : A hydroxycoumarin that is 7-hydroxycoumarin which is substituted at position 6 by a 3-methylbut-2-en-1-yl group. A natural product found in Citropsis articulata. 7-demethylsuberosin: fucocoumarin derivative of Angelicae dahuricae | hydroxycoumarin | plant metabolite |
8-geranyloxypsoralen | terpene lactone | ||
isoginkgetin | isoginkgetin : A biflavonoid resulting from the formal oxidative dimerisation between position 8 of one molecule of 5,7-dihydroxy-4'-methoxyflavone and the 3' position of another. Found in the leaves of Ginkgo biloba, it is a potent inhibitor of matrix metalloproteinase 9 (MMP-9). isoginkgetin: Isolated from Ginkgo biloba; structure in first source | aromatic ether; biflavonoid | antineoplastic agent; EC 3.4.24.35 (gelatinase B) inhibitor; plant metabolite |
osthenol | osthenol : A hydroxycoumarin that is umbelliferone in which the hydrogen at position 8 has been replaced by a prenyl group. osthenol: structure in first source | hydroxycoumarin | antifungal agent; plant metabolite |
podocarpusflavone a | podocarpusflavone A: isolated from Podocarpus imbricatus | flavonoid oligomer | |
lisinopril | Lisinopril: One of the ANGIOTENSIN-CONVERTING ENZYME INHIBITORS (ACE inhibitors), orally active, that has been used in the treatment of hypertension and congestive heart failure. | dipeptide | EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor |
benazepril | benazepril : 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 |
ramipril | quark : 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 |
grifolin | grifolin: antibiotic isolated from Grifola confluens | sesquiterpenoid | |
enalapril | enalapril : 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 anhydrous | enalaprilat (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 |
ditekiren | ditekiren: orally active renin inhibitor | ||
imidapril | imidapril : 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 |
imidaprilat | imidaprilat : 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 |
bergamottin | bergamottin: constituent of bergamot oil; structure given in first source | furanocoumarin | metabolite |
pepstatin | pepstatin: inhibits the aspartic protease endothiapepsin | pentapeptide; secondary carboxamide | bacterial metabolite; EC 3.4.23.* (aspartic endopeptidase) inhibitor |
l 685458 | L 685458: a gamma-secretase inhibitor; structure in first source L-685,458 : A peptide and carboxamide that is L-leucyl-L-phenylalaninamide, L-Leu-L-Phe-NH2, which has been acylated on the N-terminus by a Phe-Phe hydroxyethylene dipeptide isotere, 2R-benzyl-5S-tert-butoxycarbonylamino-4R-hydroxy-6-phenylhexanoic acid. Compounds based on the structure of L-685,458 are potent inhibitors of gamma-secretase, which mediates the final catalytic step that generates the amyloid beta-peptide (Abeta), which assembles into the neurotoxic aggregates in the brains of sufferers of Alzheimer's disease. | carbamate ester; monocarboxylic acid amide; peptide; secondary alcohol | EC 3.4.23.46 (memapsin 2) inhibitor; peptidomimetic |
1,3,5,6-tetrahydroxyxanthone | 1,3,5,6-tetrahydroxyxanthone: from roots of Cudrania cochinchinensis | ||
norbinaltorphimine | norbinaltorphimine: kappa opiate receptor antagonist; structure given in first source | isoquinolines | |
morusinol | morusinol: extracted from Morus alba inhibits arterial thrombosis and modulates platelet activation for the treatment of cardiovascular disease; structure in first source | flavones | |
Norartocarpetin | flavones | ||
sequoiaflavone | sequoiaflavone: Isolated from Ginkgo biloba; structure in first source | ||
alanylalanine | L-alanyl-L-alanine : A dipeptide consisting of two L-alanine units joined by a peptide linkage. | dipeptide; dipeptide zwitterion | Mycoplasma genitalium metabolite |
trandolapril | trandolapril : 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 |
w-13 | |||
n(alpha)-phosphorylalanylproline | N(alpha)-phosphorylalanylproline: inhibitor of angiotensin converting enzyme; RN given refers to (L)-isomer | ||
alpha-aspartylalanine | alpha-aspartylalanine: found in pig brain Asp-Ala : A dipeptide formed from L-alpha-aspartyl and L-valine residues. | dipeptide | metabolite |
aliskiren | aliskiren : A monomethoxybenzene compound having a 3-methoxypropoxy group at the 2-position and a multi-substituted branched alkyl substituent at the 4-position. aliskiren: orally active nonpeptidic renin inhibitor | monocarboxylic acid amide; monomethoxybenzene | antihypertensive agent |
alanyltyrosine | Tyr-Ala : A dipeptide formed from L-tyrosine and L-alanine residues. | dipeptide | metabolite |
2,4,2'-trihydroxychalcone | 2,4,2'-trihydroxychalcone: structure in first source | ||
4-hydroxylonchocarpin | 4-hydroxylonchocarpin: structure in first source | ||
uk 81,252 | sampatrilat: structure in first source | ||
ro 42-5892 | remikiren : An L-histidine derivative that is L-histidine in which one of the amino hydrogens is replaced by a (2S)-2-[(2-methylpropane-2-sulfonyl)methyl]-3-phenylpropanoyl group and the carboxy group is replaced by a [(2S,3R,4S)-1-cyclohexyl-4-cyclopropyl-3,4-dihydroxybutan-2-yl]amino group. It is a renin inhibitor which was under development for the treatment of hypertension (now discontinued). | cyclopropanes; diol; L-histidine derivative; secondary carboxamide; sulfone | antihypertensive agent; EC 3.4.23.15 (renin) inhibitor; peptidomimetic; vasodilator agent |
(-)-catechin-3-O-gallate | (-)-catechin-3-O-gallate : A gallate ester obtained by formal condensation of the carboxy group of gallic acid with the (3R)-hydroxy group of (-)-catechin. | flavans; gallate ester; polyphenol | metabolite |
prolylglycine | L-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 | |
tekturna | fumarate salt | antihypertensive agent | |
kmi-420 | KMI-420: a protease inhibitor; structure in first source | ||
kmi-429 | KMI-429: a protease inhibitor; structure in first source | ||
glutamylalanine | Glu-Ala : A dipeptide formed from L-alpha-glutamyl and L-alanine residues. | dipeptide | metabolite |
glutaminyl-glycine | Gln-Gly : A dipeptide formed from L-glutamine and glycine residues. | dipeptide | metabolite |
methionylglycine | Met-Gly : A dipeptide formed from L-methionine and glycine residues. methionylglycine: RN given refers to (L)-isomer | dipeptide | metabolite |
phenylalanyl-valine | Val-Phe : A dipeptide formed from L-valine and L-phenylalanine residues. | dipeptide | metabolite |
alanylglycine | dipeptide; dipeptide zwitterion | metabolite | |
valyltyrosine | Val-Tyr : A dipeptide formed from L-valine and L-tyrosine residues. valyltyrosine: from sardine muscle hydrolyzate | dipeptide | metabolite |
lysylglycine | Lys-Gly : A dipeptide formed from L-lysine and glycine residues. lysylglycine: structure in first source | dipeptide | metabolite |
glycylhistidine | Gly-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-tyrosine | Ile-Tyr : A dipeptide formed from L-isoleucine and L-tyrosine residues. isoleucyl-tyrosine: a dipeptide with antihypertensive effect | dipeptide | metabolite |
bis(7)-tacrine | secondary amino compound | apoptosis inhibitor; EC 1.14.13.39 (nitric oxide synthase) inhibitor; EC 3.1.1.7 (acetylcholinesterase) inhibitor; neuroprotective agent | |
fosinopril | |||
(S)-2-amino-6-boronohexanoic acid | (S)-2-amino-6-boronohexanoic acid : L-Norleucine substituted at C-6 with a borono group. | non-proteinogenic L-alpha-amino acid; organoboron compound | |
rxp 407 | RXP 407: inhibits angiotensin I converting enzyme | ||
prolylvaline | Val-Pro : A dipeptide formed from L-valine and L-proline residues. | dipeptide | metabolite |
cgs 35066 | CGS 35066: an endothelin-converting enzyme-1 inhibitor; structure in first source | ||
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 |
memoquin | memoquin: structure in first source | ||
3,4,5,6-tetrahydroxyxanthone | |||
cnidicin | cnidicin: a coumarin from the root of Angelica koreana; structure in first source | ||
2,4,2',4'-Tetrahydroxychalcone | chalcones | ||
sargahydroquinoic acid | sargahydroquinoic acid: vasodilatator from the brown alga Sargassum macrocarpum; structure in first source | ||
n-cyclopropyl adenosine-5'-carboxamide | |||
eckstolonol | eckstolonol : A phlorotannin that is [1,4]benzodioxino[2,3-a]oxanthrene substituted by hydroxy groups at positions 1, 3, 6, 9 and 11. Isolated from the brown alga Ecklonia stolonifera, it exhibits radical scavenging activity. eckstolonol: structure in first source | organic heteropentacyclic compound; oxacycle; phlorotannin | metabolite; radical scavenger |
sargachromenol | sargachromenol: nerve growth factor-potentiating substance from Sargassum macrocarpum; structure in first source | ||
7-phloroeckol | 7-phloroeckol : A phlorotannin that is eckol in which the hydroxy group at position 7 is replaced by a 2,4,6-trihydroxyphenoxy group. Isolated from the marine brown alga, Ecklonia cava, it exhibits antioxidant activity. 7-phloroeckol: isolated from Ecklonia cava; structure in first source | aromatic ether; phlorotannin | antioxidant; EC 3.1.1.3 (triacylglycerol lipase) inhibitor; metabolite |
s 3304 | S 3304: structure in first source | ||
tasiamide b | tasiamide B: 4-amino-3-hydroxy-5-phenylpentanoic acid containing peptide from the marine cyanobacterium Symploca sp.; structure in first source | ||
boeravinone e | boeravinone E: from Boerhaavia diffusa L; structure in first source | ||
mk-8141 | MK-8141: renin inhibitor; structure in first source | ||
pf 877423 | |||
sesone | 7-deazaxanthine: structure in first source | ||
2'-methoxykurarinone | (2S)-2'-methoxykurarinone : A dimethoxyflavanone that is (2S)-(-)-kurarinone in which the hydroxy group at position 2' is replaced by a methoxy group. Isolated from the roots of Sophora flavescens, it exhibits cytotoxicity against human myeloid leukemia HL-60 cells. 2'-methoxykurarinone: cytotoxic lavandulyl flavanone from Sophora flavescens; structure in first source | 4'-hydroxyflavanones; dihydroxyflavanone; dimethoxyflavanone | antineoplastic agent; metabolite |
mk-1597 | MK-1597: structure in first source | ||
gsk188909 | GSK188909: a potent and selective non-peptidic BACE-1 inhibitor; structure in first source | ||
vtp-27999 | |||
gsk1482160 | |||
1-(4-methoxybenzyl)-5-(trifluoromethoxy)indoline-2,3-dione | |||
6-(3,5-difluoroanilino)-9-ethyl-2-purinecarbonitrile | 6-aminopurines | ||
ly2811376 | |||
grassystatin a | grassystatin A: isolated from a cyanobacterium, identified as Lyngbya cf.; structure in first source | ||
Kushenol A | kushenol A: a tyrosinase inhibitor derived from Sophora flavescens | flavanones | |
kurarinol | kurarinol : A trihydroxyflavanone that is (2S)-flavanone substituted by hydroxy groups at positions 7, 2' and 4' , a methoxy group at position 5 and a (2S)-5-hydroxy-5-methyl-2-(prop-1-en-2-yl)hexyl group at position 8 respectively. kurarinol: from Sophora flavescens; has inhibitory effect on tyrosinase and melanin synthesis; structure in first source | 4'-hydroxyflavanones; monomethoxyflavanone; trihydroxyflavanone | anti-inflammatory agent; antioxidant; plant metabolite |
leachianone a | leachianone A : A trihydroxyflavanone that is (2S)-flavanone substituted by a lavandulyl group at position 8, hydroxy groups at positions 5, 7 and 4' and a methoxy group at position 2'. Isolated from the roots of Sophora flavescens and Sophora leachiana, it exhibits antineoplastic and antimalarial activity. leachianone A: isolated from the Chinese herbal medicine Radix Sophorae; structure in first source | 4'-hydroxyflavanones; monomethoxyflavanone; trihydroxyflavanone | antimalarial; antineoplastic agent; metabolite |
azd3839 | AZD3839: a BACE1 inhibitor; structure in first source | ||
ly2886721 | |||
ass234 | |||
novobiocin | novobiocin : 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 |
rolitetracycline | rolitetracycline : A derivative of tetracycline in which the amide function is substituted with a pyrrolidinomethyl group. Rolitetracycline: A pyrrolidinylmethyl TETRACYCLINE. | ||
quininib | quininib : A styrylquinoline that is trans-2-styrylquinoline in which the the phenyl group has been substituted at position 2 by a hydroxy group. It is an anti-angiogenic compound that exerts a dose-dependent antagonism of the cysteinyl leukotriene pathway, preferentially antagonising cysteinyl leukotriene receptor 1. The major species at pH 7.3 quininib: has antiangiogenic activity; structure in first source | phenols; styrylquinoline | angiogenesis inhibitor |
lomofungin | lomofungin: antibiotic obtained from Streptomyces species; reported effective against bacteria as well as fungi & yeasts; probably inhibits nucleic acid & protein synthesis; minor descriptor (76-85); on-line & Index Medicus search PHENAZINES (76-85) |