Substance | Relationship Strength | Studies | Trials | Classes | Roles |
gamma-aminobutyric acid gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. | 3.51 | 2 | 0 | amino acid zwitterion; gamma-amino acid; monocarboxylic acid | human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule |
beta-alanine [no description available] | 2.41 | 2 | 0 | amino acid zwitterion; beta-amino acid | agonist; fundamental metabolite; human metabolite; inhibitor; neurotransmitter |
betaine glycine betaine : The amino acid betaine derived from glycine. | 2.06 | 1 | 0 | amino-acid betaine; glycine derivative | fundamental metabolite |
1-aminocyclopropane-1-carboxylic acid 1-aminocyclopropanecarboxylic acid : A non-proteinogenic alpha-amino acid consisting of cyclopropane having amino and carboxy substituents both at the 1-position. | 2.05 | 1 | 0 | amino acid zwitterion; monocarboxylic acid; non-proteinogenic alpha-amino acid | ethylene releasers; plant metabolite |
aminocaproic acid Aminocaproic Acid: An antifibrinolytic agent that acts by inhibiting plasminogen activators which have fibrinolytic properties.. 6-aminohexanoic acid : An epsilon-amino acid comprising hexanoic acid carrying an amino substituent at position C-6. Used to control postoperative bleeding, and to treat overdose effects of the thrombolytic agents streptokinase and tissue plasminogen activator. | 2.06 | 1 | 0 | amino acid zwitterion; epsilon-amino acid; omega-amino fatty acid | antifibrinolytic drug; hematologic agent; metabolite |
creatine [no description available] | 2.06 | 1 | 0 | glycine derivative; guanidines; zwitterion | geroprotector; human metabolite; mouse metabolite; neuroprotective agent; nutraceutical |
glycine [no description available] | 3.1 | 5 | 0 | alpha-amino acid; amino acid zwitterion; proteinogenic amino acid; serine family amino acid | EC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitor; fundamental metabolite; hepatoprotective agent; micronutrient; neurotransmitter; NMDA receptor agonist; nutraceutical |
glycocyamine glycocyamine: RN given refers to parent cpd; structure. guanidinoacetate : A monocarboxylic acid anion that is the conjugate base of guanidinoacetic acid, obtained by deprotonation of the carboxy group.. guanidinoacetic acid : The N-amidino derivative of glycine. | 2.06 | 1 | 0 | guanidinoacetic acids; zwitterion | bacterial metabolite; human metabolite; mouse metabolite; nutraceutical; rat metabolite |
picolinic acid picolinic acid: iron-chelating agent that inhibits DNA synthesis; may interfere with iron-dependent production of stable free organic radical which is essential for ribonucleotide reductase formation of deoxyribonucleotides; RN given refers to parent cpd; structure in Merck Index, 9th ed, #7206. picolinic acid : A pyridinemonocarboxylic acid in which the carboxy group is located at position 2. It is an intermediate in the metabolism of tryptophan. | 2.06 | 1 | 0 | pyridinemonocarboxylic acid | human metabolite; MALDI matrix material |
pyruvic acid Pyruvic Acid: An intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed). pyruvic acid : A 2-oxo monocarboxylic acid that is the 2-keto derivative of propionic acid. It is a metabolite obtained during glycolysis. | 2 | 1 | 0 | 2-oxo monocarboxylic acid | cofactor; fundamental metabolite |
sarcosine cocobetaine: N-alkyl-betaine; cause of shampoo dermatitis | 2.41 | 2 | 0 | N-alkylglycine zwitterion; N-alkylglycine; N-methyl-amino acid; N-methylglycines | Escherichia coli metabolite; glycine receptor agonist; glycine transporter 1 inhibitor; human metabolite; mouse metabolite |
taurine [no description available] | 2.06 | 1 | 0 | amino sulfonic acid; zwitterion | antioxidant; Escherichia coli metabolite; glycine receptor agonist; human metabolite; mouse metabolite; nutrient; radical scavenger; Saccharomyces cerevisiae metabolite |
1-aminocyclohexanecarboxylic acid 1-aminocyclohexanecarboxylic acid: RN given refers to parent cpd. 1-amino-1-cyclohexanecarboxylic acid : An alpha-amino acid that is cyclohexanecarboxylic acid substituted by an amino group at position 1. | 2.05 | 1 | 0 | alpha-amino acid | |
tramiprosate tramiprosate: GABA receptor agonist and a glycosaminoglycan mimetic; has nootropic acitivity; structure; a sulfonate analog of GABA. 3-aminopropanesulfonic acid : An amino sulfonic acid that is the 3-amino derivative of propanesulfonic acid. | 2.06 | 1 | 0 | amino sulfonic acid; zwitterion | algal metabolite; anti-inflammatory agent; anticonvulsant; GABA agonist; nootropic agent |
5,7-dichlorokynurenic acid 5,7-dichlorokynurenic acid: potent antagonist at the N-methyl-D-aspartate receptor-associated glycine binding site | 2.05 | 1 | 0 | quinolines | |
5-methoxytryptamine 5-Methoxytryptamine: Serotonin derivative proposed as potentiator for hypnotics and sedatives.. 5-methoxytryptamine : A member of the class of tryptamines that is the methyl ether derivative of serotonin. | 3.08 | 1 | 0 | aromatic ether; primary amino compound; tryptamines | 5-hydroxytryptamine 2A receptor agonist; 5-hydroxytryptamine 2B receptor agonist; 5-hydroxytryptamine 2C receptor agonist; antioxidant; cardioprotective agent; human metabolite; mouse metabolite; neuroprotective agent; radiation protective agent; serotonergic agonist |
clonazepam Clonazepam: An anticonvulsant used for several types of seizures, including myotonic or atonic seizures, photosensitive epilepsy, and absence seizures, although tolerance may develop. It is seldom effective in generalized tonic-clonic or partial seizures. The mechanism of action appears to involve the enhancement of GAMMA-AMINOBUTYRIC ACID receptor responses.. clonazepam : 1,3-Dihydro-2H-1,4-benzodiazepin-2-one in which the hydrogens at positions 5 and 7 are substituted by 2-chlorophenyl and nitro groups, respectively. It is used in the treatment of all types of epilepsy and seizures, as well as myoclonus and associated abnormal movements, and panic disorders. However, its use can be limited by the development of tolerance and by sedation. | 3.08 | 1 | 0 | 1,4-benzodiazepinone; monochlorobenzenes | anticonvulsant; anxiolytic drug; GABA modulator |
cycloleucine Cycloleucine: An amino acid formed by cyclization of leucine. It has cytostatic, immunosuppressive and antineoplastic activities.. 1-aminocyclopentanecarboxylic acid : A non-proteinogenic alpha-amino acid that is cyclopentane substituted at position 1 by amino and carboxy groups. | 2.05 | 1 | 0 | non-proteinogenic alpha-amino acid | EC 2.5.1.6 (methionine adenosyltransferase) inhibitor |
desipramine Desipramine: A tricyclic dibenzazepine compound that potentiates neurotransmission. Desipramine selectively blocks reuptake of norepinephrine from the neural synapse, and also appears to impair serotonin transport. This compound also possesses minor anticholinergic activity, through its affinity to muscarinic receptors.. desipramine : A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group. | 3.08 | 1 | 0 | dibenzoazepine; secondary amino compound | adrenergic uptake inhibitor; alpha-adrenergic antagonist; antidepressant; cholinergic antagonist; drug allergen; EC 3.1.4.12 (sphingomyelin phosphodiesterase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; H1-receptor antagonist; serotonin uptake inhibitor |
fluoxetine Fluoxetine: The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants.. fluoxetine : A racemate comprising equimolar amounts of (R)- and (S)-fluoxetine. A selective serotonin reuptake inhibitor (SSRI), it is used (generally as the hydrochloride salt) for the treatment of depression (and the depressive phase of bipolar disorder), bullimia nervosa, and obsessive-compulsive disorder.. N-methyl-3-phenyl-3-[4-(trifluoromethyl)phenoxy]propan-1-amine : An aromatic ether consisting of 4-trifluoromethylphenol in which the hydrogen of the phenolic hydroxy group is replaced by a 3-(methylamino)-1-phenylpropyl group. | 3.08 | 1 | 0 | (trifluoromethyl)benzenes; aromatic ether; secondary amino compound | |
flurazepam Flurazepam: A benzodiazepine derivative used mainly as a hypnotic.. flurazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a 2-(diethylamino)ethyl group, 2-fluorophenyl group and chloro group at positions 1, 5 and 7, respectively. It is a partial agonist of GABAA receptors and used for the treatment of insomnia. | 3.08 | 1 | 0 | 1,4-benzodiazepinone; monofluorobenzenes; organochlorine compound; tertiary amino compound | anticonvulsant; anxiolytic drug; GABAA receptor agonist; sedative |
haloperidol Haloperidol: A phenyl-piperidinyl-butyrophenone that is used primarily to treat SCHIZOPHRENIA and other PSYCHOSES. It is also used in schizoaffective disorder, DELUSIONAL DISORDERS, ballism, and TOURETTE SYNDROME (a drug of choice) and occasionally as adjunctive therapy in INTELLECTUAL DISABILITY and the chorea of HUNTINGTON DISEASE. It is a potent antiemetic and is used in the treatment of intractable HICCUPS. (From AMA Drug Evaluations Annual, 1994, p279). haloperidol : A compound composed of a central piperidine structure with hydroxy and p-chlorophenyl substituents at position 4 and an N-linked p-fluorobutyrophenone moiety. | 3.08 | 1 | 0 | aromatic ketone; hydroxypiperidine; monochlorobenzenes; organofluorine compound; tertiary alcohol | antidyskinesia agent; antiemetic; dopaminergic antagonist; first generation antipsychotic; serotonergic antagonist |
imipramine Imipramine: The prototypical tricyclic antidepressant. It has been used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders. It has less sedative effect than some other members of this therapeutic group.. imipramine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)propyl group at the nitrogen atom. | 3.08 | 1 | 0 | dibenzoazepine | adrenergic uptake inhibitor; antidepressant; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor |
isoguvacine isoguvacine: A GABA agonist; RN given refers to parent cpd; structure | 2.06 | 1 | 0 | tetrahydropyridine | |
4-piperidinecarboxylic acid 4-piperidinecarboxylic acid: structure in first source | 2.41 | 2 | 0 | | |
ketanserin Ketanserin: A selective serotonin receptor antagonist with weak adrenergic receptor blocking properties. The drug is effective in lowering blood pressure in essential hypertension. It also inhibits platelet aggregation. It is well tolerated and is particularly effective in older patients.. ketanserin : A member of the class of quinazolines that is quinazoline-2,4(1H,3H)-dione which is substituted at position 3 by a 2-[4-(p-fluorobenzoyl)piperidin-1-yl]ethyl group. | 3.08 | 1 | 0 | aromatic ketone; organofluorine compound; piperidines; quinazolines | alpha-adrenergic antagonist; antihypertensive agent; cardiovascular drug; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; serotonergic antagonist |
metoprolol Metoprolol: A selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS.. metoprolol : A propanolamine that is 1-(propan-2-ylamino)propan-2-ol substituted by a 4-(2-methoxyethyl)phenoxy group at position 1. | 3.08 | 1 | 0 | aromatic ether; propanolamine; secondary alcohol; secondary amino compound | antihypertensive agent; beta-adrenergic antagonist; environmental contaminant; geroprotector; xenobiotic |
muscimol Muscimol: A neurotoxic isoxazole isolated from species of AMANITA. It is obtained by decarboxylation of IBOTENIC ACID. Muscimol is a potent agonist of GABA-A RECEPTORS and is used mainly as an experimental tool in animal and tissue studies.. muscimol : A member of the class of isoxazoles that is 1,2-oxazol-3(2H)-one substituted by an aminomethyl group at position 5. It has been isolated from mushrooms of the genus Amanita. | 3.08 | 1 | 0 | alkaloid; isoxazoles; primary amino compound | fungal metabolite; GABA agonist; oneirogen; psychotropic drug |
nifedipine Nifedipine: A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure. | 3.08 | 1 | 0 | C-nitro compound; dihydropyridine; methyl ester | calcium channel blocker; human metabolite; tocolytic agent; vasodilator agent |
nomifensine Nomifensine: An isoquinoline derivative that prevents dopamine reuptake into synaptosomes. The maleate was formerly used in the treatment of depression. It was withdrawn worldwide in 1986 due to the risk of acute hemolytic anemia with intravascular hemolysis resulting from its use. In some cases, renal failure also developed. (From Martindale, The Extra Pharmacopoeia, 30th ed, p266). nomifensine : An N-methylated tetrahydroisoquinoline carrying phenyl and amino substituents at positions C-4 and C-8, respectively. | 3.08 | 1 | 0 | isoquinolines | dopamine uptake inhibitor |
spiperone Spiperone: A spiro butyrophenone analog similar to HALOPERIDOL and other related compounds. It has been recommended in the treatment of SCHIZOPHRENIA.. spiperone : An azaspiro compound that is 1,3,8-triazaspiro[4.5]decane which is substituted at positions 1, 4, and 8 by phenyl, oxo, and 4-(p-fluorophenyl)-4-oxobutyl groups, respectively. | 3.08 | 1 | 0 | aromatic ketone; azaspiro compound; organofluorine compound; piperidines; tertiary amino compound | alpha-adrenergic antagonist; antipsychotic agent; dopaminergic antagonist; psychotropic drug; serotonergic antagonist |
tyramine [no description available] | 2 | 1 | 0 | monoamine molecular messenger; primary amino compound; tyramines | EC 3.1.1.8 (cholinesterase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter |
lysergic acid diethylamide Lysergic Acid Diethylamide: Semisynthetic derivative of ergot (Claviceps purpurea). It has complex effects on serotonergic systems including antagonism at some peripheral serotonin receptors, both agonist and antagonist actions at central nervous system serotonin receptors, and possibly effects on serotonin turnover. It is a potent hallucinogen, but the mechanisms of that effect are not well understood.. lysergic acid diethylamide : An ergoline alkaloid arising from formal condensation of lysergic acid with diethylamine. | 3.08 | 1 | 0 | ergoline alkaloid; monocarboxylic acid amide; organic heterotetracyclic compound | dopamine agonist; hallucinogen; serotonergic agonist |
phentolamine Phentolamine: A nonselective alpha-adrenergic antagonist. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of RAYNAUD DISEASE and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.. phentolamine : A substituted aniline that is 3-aminophenol in which the hydrogens of the amino group are replaced by 4-methylphenyl and 4,5-dihydro-1H-imidazol-2-ylmethyl groups respectively. An alpha-adrenergic antagonist, it is used for the treatment of hypertension. | 3.08 | 1 | 0 | imidazoles; phenols; substituted aniline; tertiary amino compound | alpha-adrenergic antagonist; vasodilator agent |
2-aminophenol [no description available] | 1.97 | 1 | 0 | aminophenol | bacterial metabolite |
hydroxyproline Hydroxyproline: A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired hydroxyproline formation.. hydroxyproline : A proline derivative that is proline substituted by at least one hydroxy group. | 2.06 | 1 | 0 | 4-hydroxyproline; L-alpha-amino acid zwitterion | human metabolite; mouse metabolite; plant metabolite |
thyroxine Thyroxine: The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.. thyroxine : An iodothyronine compound having iodo substituents at the 3-, 3'-, 5- and 5'-positions. | 2 | 1 | 0 | 2-halophenol; iodophenol; L-phenylalanine derivative; non-proteinogenic L-alpha-amino acid; thyroxine zwitterion; thyroxine | antithyroid drug; human metabolite; mouse metabolite; thyroid hormone |
cysteine [no description available] | 2.43 | 2 | 0 | cysteine zwitterion; cysteine; L-alpha-amino acid; proteinogenic amino acid; serine family amino acid | EC 4.3.1.3 (histidine ammonia-lyase) inhibitor; flour treatment agent; human metabolite |
triiodothyronine Triiodothyronine: A T3 thyroid hormone normally synthesized and secreted by the thyroid gland in much smaller quantities than thyroxine (T4). Most T3 is derived from peripheral monodeiodination of T4 at the 5' position of the outer ring of the iodothyronine nucleus. The hormone finally delivered and used by the tissues is mainly T3.. 3,3',5-triiodo-L-thyronine : An iodothyronine compound having iodo substituents at the 3-, 3'- and 5-positions. Although some is produced in the thyroid, most of the 3,3',5-triiodo-L-thyronine in the body is generated by mono-deiodination of L-thyroxine in the peripheral tissues. Its metabolic activity is about 3 to 5 times that of L-thyroxine. The sodium salt is used in the treatment of hypothyroidism. | 2 | 1 | 0 | 2-halophenol; amino acid zwitterion; iodophenol; iodothyronine | human metabolite; mouse metabolite; thyroid hormone |
alanine Alanine: A non-essential amino acid that occurs in high levels in its free state in plasma. It is produced from pyruvate by transamination. It is involved in sugar and acid metabolism, increases IMMUNITY, and provides energy for muscle tissue, BRAIN, and the CENTRAL NERVOUS SYSTEM.. alanine : An alpha-amino acid that consists of propionic acid bearing an amino substituent at position 2. | 2.91 | 4 | 0 | alanine zwitterion; alanine; L-alpha-amino acid; proteinogenic amino acid; pyruvate family amino acid | EC 4.3.1.15 (diaminopropionate ammonia-lyase) inhibitor; fundamental metabolite |
serine Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 2.43 | 2 | 0 | L-alpha-amino acid; proteinogenic amino acid; serine family amino acid; serine zwitterion; serine | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
aspartic acid Aspartic Acid: One of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter.. aspartic acid : An alpha-amino acid that consists of succinic acid bearing a single alpha-amino substituent. L-aspartic acid : The L-enantiomer of aspartic acid. | 2 | 1 | 0 | aspartate family amino acid; aspartic acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; mouse metabolite; neurotransmitter |
glutamine Glutamine: A non-essential amino acid present abundantly throughout the body and is involved in many metabolic processes. It is synthesized from GLUTAMIC ACID and AMMONIA. It is the principal carrier of NITROGEN in the body and is an important energy source for many cells.. L-glutamine : An optically active form of glutamine having L-configuration.. glutamine : An alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position 4. | 2 | 1 | 0 | amino acid zwitterion; glutamine family amino acid; glutamine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid | EC 1.14.13.39 (nitric oxide synthase) inhibitor; Escherichia coli metabolite; human metabolite; metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
lysine Lysine: An essential amino acid. It is often added to animal feed.. lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.. L-lysine : An L-alpha-amino acid; the L-isomer of lysine. | 2 | 1 | 0 | aspartate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; lysine; organic molecular entity; proteinogenic amino acid | algal metabolite; anticonvulsant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
levodopa Levodopa: The naturally occurring form of DIHYDROXYPHENYLALANINE and the immediate precursor of DOPAMINE. Unlike dopamine itself, it can be taken orally and crosses the blood-brain barrier. It is rapidly taken up by dopaminergic neurons and converted to DOPAMINE. It is used for the treatment of PARKINSONIAN DISORDERS and is usually given with agents that inhibit its conversion to dopamine outside of the central nervous system.. L-dopa : An optically active form of dopa having L-configuration. Used to treat the stiffness, tremors, spasms, and poor muscle control of Parkinson's disease | 2 | 1 | 0 | amino acid zwitterion; dopa; L-tyrosine derivative; non-proteinogenic L-alpha-amino acid | allelochemical; antidyskinesia agent; antiparkinson drug; dopaminergic agent; hapten; human metabolite; mouse metabolite; neurotoxin; plant growth retardant; plant metabolite; prodrug |
tyrosine Tyrosine: A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.. tyrosine : An alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring. | 2 | 1 | 0 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; proteinogenic amino acid; tyrosine | EC 1.3.1.43 (arogenate dehydrogenase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
leucine Leucine: An essential branched-chain amino acid important for hemoglobin formation.. leucine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isobutyl group. | 2.43 | 2 | 0 | amino acid zwitterion; L-alpha-amino acid; leucine; proteinogenic amino acid; pyruvate family amino acid | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
2-aminoisobutyric acid 2-aminoisobutyric acid: RN given refers to unlabeled cpd. 2-aminoisobutyric acid : A rare, non-protein amino acid and end-product of pyrimidine metabolism, excreted in urine and found in some antibiotics of fungal origin. With the exception of a few bacteria, it is non-metabolisable, and therefore used in bioassays. | 2.06 | 1 | 0 | 2,2-dialkylglycine zwitterion; 2,2-dialkylglycine | |
methionine Methionine: A sulfur-containing essential L-amino acid that is important in many body functions.. methionine : A sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4. | 2 | 1 | 0 | aspartate family amino acid; L-alpha-amino acid; methionine zwitterion; methionine; proteinogenic amino acid | antidote to paracetamol poisoning; human metabolite; micronutrient; mouse metabolite; nutraceutical |
phenylalanine Phenylalanine: An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE.. L-phenylalanine : The L-enantiomer of phenylalanine.. phenylalanine : An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group. | 2 | 1 | 0 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; phenylalanine; proteinogenic amino acid | algal metabolite; EC 3.1.3.1 (alkaline phosphatase) inhibitor; Escherichia coli metabolite; human xenobiotic metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
cycloserine Cycloserine: Antibiotic substance produced by Streptomyces garyphalus.. D-cycloserine : A 4-amino-1,2-oxazolidin-3-one that has R configuration. It is an antibiotic produced by Streptomyces garyphalus or S. orchidaceus and is used as part of a multi-drug regimen for the treatment of tuberculosis when resistance to, or toxicity from, primary drugs has developed. An analogue of D-alanine, it interferes with bacterial cell wall synthesis in the cytoplasm by competitive inhibition of L-alanine racemase (which forms D-alanine from L-alanine) and D-alanine--D-alanine ligase (which incorporates D-alanine into the pentapeptide required for peptidoglycan formation and bacterial cell wall synthesis). | 2.71 | 3 | 0 | 4-amino-1,2-oxazolidin-3-one; organonitrogen heterocyclic antibiotic; organooxygen heterocyclic antibiotic; zwitterion | antiinfective agent; antimetabolite; antitubercular agent; metabolite; NMDA receptor agonist |
tubercidin Tubercidin: An antibiotic purine ribonucleoside that readily substitutes for adenosine in the biological system, but its incorporation into DNA and RNA has an inhibitory effect on the metabolism of these nucleic acids.. tubercidin : An N-glycosylpyrrolopyrimidine that is adenosine in which the in the 5-membered ring that is not attached to the ribose moiety is replaced by a carbon. Tubercidin is produced in the culture broth of Streptomyces tubericidus. | 2.05 | 1 | 0 | antibiotic antifungal agent; N-glycosylpyrrolopyrimidine; ribonucleoside | antimetabolite; antineoplastic agent; bacterial metabolite |
asparagine Asparagine: A non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue. It is biosynthesized from ASPARTIC ACID and AMMONIA by asparagine synthetase. (From Concise Encyclopedia Biochemistry and Molecular Biology, 3rd ed). asparagine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 2-amino-2-oxoethyl group. | 2 | 1 | 0 | amino acid zwitterion; asparagine; aspartate family amino acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
histidine Histidine: An essential amino acid that is required for the production of HISTAMINE.. L-histidine : The L-enantiomer of the amino acid histidine.. histidine : An alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3. | 2 | 1 | 0 | amino acid zwitterion; histidine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid | algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
valine Valine: A branched-chain essential amino acid that has stimulant activity. It promotes muscle growth and tissue repair. It is a precursor in the penicillin biosynthetic pathway.. valine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isopropyl group.. L-valine : The L-enantiomer of valine. | 2 | 1 | 0 | L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; pyruvate family amino acid; valine | algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
threonine Threonine: An essential amino acid occurring naturally in the L-form, which is the active form. It is found in eggs, milk, gelatin, and other proteins.. threonine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 1-hydroxyethyl group. | 2 | 1 | 0 | amino acid zwitterion; aspartate family amino acid; L-alpha-amino acid; proteinogenic amino acid; threonine | algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
tryptophan Tryptophan: An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.. tryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3. | 2 | 1 | 0 | erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; tryptophan zwitterion; tryptophan | antidepressant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
isoleucine Isoleucine: An essential branched-chain aliphatic amino acid found in many proteins. It is an isomer of LEUCINE. It is important in hemoglobin synthesis and regulation of blood sugar and energy levels.. isoleucine : A 2-amino-3-methylpentanoic acid having either (2R,3R)- or (2S,3S)-configuration.. L-isoleucine : The L-enantiomer of isoleucine. | 2.43 | 2 | 0 | aspartate family amino acid; isoleucine; L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
arginine Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group. | 2 | 1 | 0 | arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical |
phencyclidine Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.. phencyclidine : A member of the class of piperidines that is piperidine in which the nitrogen is substituted with a 1-phenylcyclohexyl group. Formerly used as an anaesthetic agent, it exhibits both hallucinogenic and neurotoxic effects. | 3.08 | 1 | 0 | benzenes; piperidines | anaesthetic; neurotoxin; NMDA receptor antagonist; psychotropic drug |
3-aminobenzoic acid 3-aminobenzoic acid: RN given refers to parent cpd. 3-aminobenzoic acid : An aminobenzoic acid carrying an amino group at position 3. | 2.06 | 1 | 0 | aminobenzoic acid | |
piperidine [no description available] | 2.06 | 1 | 0 | azacycloalkane; piperidines; saturated organic heteromonocyclic parent; secondary amine | base; catalyst; human metabolite; non-polar solvent; plant metabolite; protic solvent; reagent |
2-chloroadenosine 5-chloroformycin A: structure given in first source | 3.08 | 1 | 0 | purine nucleoside | |
D-proline [no description available] | 2.41 | 2 | 0 | D-alpha-amino acid zwitterion; D-alpha-amino acid; proline | mouse metabolite |
D-tryptophan [no description available] | 2 | 1 | 0 | D-alpha-amino acid; tryptophan zwitterion; tryptophan | bacterial metabolite |
3-methoxytyrosine 3-O-methyldopa : A L-tyrosine derivative that is the 3-methoxy derivative of L-dopa. | 2 | 1 | 0 | aromatic L-alpha-amino acid zwitterion; L-tyrosine derivative; monomethoxybenzene; non-proteinogenic L-alpha-amino acid | human metabolite |
methylthioinosine Methylthioinosine: 6-(Methylthio)-9-beta-D-ribofuranosylpurine. An analog of inosine with a methylthio group replacing the hydroxyl group in the 6-position. | 2.05 | 1 | 0 | purine ribonucleoside; thiopurine | |
kainic acid Kainic Acid: (2S-(2 alpha,3 beta,4 beta))-2-Carboxy-4-(1-methylethenyl)-3-pyrrolidineacetic acid. Ascaricide obtained from the red alga Digenea simplex. It is a potent excitatory amino acid agonist at some types of excitatory amino acid receptors and has been used to discriminate among receptor types. Like many excitatory amino acid agonists it can cause neurotoxicity and has been used experimentally for that purpose. | 3.08 | 1 | 0 | dicarboxylic acid; L-proline derivative; non-proteinogenic L-alpha-amino acid; pyrrolidinecarboxylic acid | antinematodal drug; excitatory amino acid agonist |
arecaidine [no description available] | 1.98 | 1 | 0 | citraconoyl group | |
4-hydroxybutyric acid 4-hydroxybutyric acid: was an entry term to Sodium Oxybate (74-98). 4-hydroxybutyric acid : A 4-hydroxy monocarboxylic acid that is butyric acid in which one of the hydrogens at position 4 is replaced by a hydroxy group. | 2.06 | 1 | 0 | 4-hydroxy monocarboxylic acid; hydroxybutyric acid | general anaesthetic; GHB receptor agonist; neurotoxin; sedative |
thiazolidines Thiazolidines: Reduced (protonated) form of THIAZOLES. They can be oxidized to THIAZOLIDINEDIONES. | 2.06 | 1 | 0 | thiazolidine | |
azetidyl-2-carboxylic acid azetidyl-2-carboxylic acid: a proline analog (with 4-membered ring in place of 5); a toxic non-protein amino acid that is misincorporated into protein in place of proline; induces nonfunctional heat-shock proteins; inhibits acquired thermotolerance; RN given refers to (L)-isomer; found in beets and Liliaceae. (S)-azetidine-2-carboxylic acid : The (S)-enantiomer of azetidine-2-carboxylic acid.. azetidinecarboxylic acid : A member of the class of azetidines that is azetidine substituted by at least one carboxy group at unspecified position. | 2.06 | 1 | 0 | azetidine-2-carboxylic acid | |
n-methylaspartate N-Methylaspartate: An amino acid that, as the D-isomer, is the defining agonist for the NMDA receptor subtype of glutamate receptors (RECEPTORS, NMDA).. N-methyl-D-aspartic acid : An aspartic acid derivative having an N-methyl substituent and D-configuration. | 3.08 | 1 | 0 | amino dicarboxylic acid; D-alpha-amino acid; D-aspartic acid derivative; secondary amino compound | neurotransmitter agent |
isopentenyladenosine Isopentenyladenosine: N(6)-[delta(3)-isopentenyl]adenosine. Isopentenyl derivative of adenosine which is a member of the cytokinin family of plant growth regulators.. N(6)-(Delta(2)-isopentenyl)adenosine : A nucleoside analogue in which adenosine has been modified by substitution at the 6-amino nitrogen by a Delta(2)-isopentenyl group. | 2.05 | 1 | 0 | N-ribosyl-N(6)-isopentenyladenine; nucleoside analogue | antineoplastic agent; plant growth regulator; plant metabolite |
pyrrolidine [no description available] | 2.06 | 1 | 0 | azacycloalkane; pyrrolidines; saturated organic heteromonocyclic parent | |
glutamic acid Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. | 2 | 1 | 0 | glutamic acid; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; ferroptosis inducer; micronutrient; mouse metabolite; neurotransmitter; nutraceutical |
phorbol 12,13-dibutyrate Phorbol 12,13-Dibutyrate: A phorbol ester found in CROTON OIL which, in addition to being a potent skin tumor promoter, is also an effective activator of calcium-activated, phospholipid-dependent protein kinase (protein kinase C). Due to its activation of this enzyme, phorbol 12,13-dibutyrate profoundly affects many different biological systems. | 3.08 | 1 | 0 | butyrate ester; phorbol ester; tertiary alpha-hydroxy ketone | |
methyldopa Methyldopa: An alpha-2 adrenergic agonist that has both central and peripheral nervous system effects. Its primary clinical use is as an antihypertensive agent.. alpha-methyl-L-dopa : A derivative of L-tyrosine having a methyl group at the alpha-position and an additional hydroxy group at the 3-position on the phenyl ring. | 2 | 1 | 0 | L-tyrosine derivative; non-proteinogenic L-alpha-amino acid | alpha-adrenergic agonist; antihypertensive agent; hapten; peripheral nervous system drug; sympatholytic agent |
colforsin Colforsin: Potent activator of the adenylate cyclase system and the biosynthesis of cyclic AMP. From the plant COLEUS FORSKOHLII. Has antihypertensive, positive inotropic, platelet aggregation inhibitory, and smooth muscle relaxant activities; also lowers intraocular pressure and promotes release of hormones from the pituitary gland. | 3.08 | 1 | 0 | acetate ester; cyclic ketone; labdane diterpenoid; organic heterotricyclic compound; tertiary alpha-hydroxy ketone; triol | adenylate cyclase agonist; anti-HIV agent; antihypertensive agent; plant metabolite; platelet aggregation inhibitor; protein kinase A agonist |
adenosine quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit | 2.05 | 1 | 0 | adenosines; purines D-ribonucleoside | analgesic; anti-arrhythmia drug; fundamental metabolite; human metabolite; vasodilator agent |
d-lactic acid (R)-lactic acid : An optically active form of lactic acid having (R)-configuration. | 2 | 1 | 0 | 2-hydroxypropanoic acid | Escherichia coli metabolite; human metabolite |
benzylaminopurine benzylaminopurine: a plant growth regulator. N-benzyladenine : A member of the class of 6-aminopurines that is adenine in which one of the hydrogens of the amino group is replaced by a benzyl group. | 2.05 | 1 | 0 | 6-aminopurines | cytokinin; plant metabolite |
xanthosine [no description available] | 2.05 | 1 | 0 | purines D-ribonucleoside; xanthosines | Escherichia coli metabolite; human metabolite; mouse metabolite |
isoguanosine [no description available] | 2.05 | 1 | 0 | purine nucleoside | |
norvaline norvaline: differs from valine in being 1 carbon longer instead of branched; RN given refers to (L)-isomer; structure. L-2-aminopentanoic acid : A 2-aminopentanoic acid that has S-configuration. | 2.06 | 1 | 0 | 2-aminopentanoic acid; L-alpha-amino acid zwitterion | bacterial metabolite; hypoglycemic agent; neuroprotective agent |
guanidinopropionic acid guanidinopropionic acid: alters creatine metabolism; structure. 3-guanidinopropanoic acid : A guanidine compound bearing an N-(2-carboxyethyl) substituent. It is a creatine analogue that has been found to decreases plasma glucose levels | 2.06 | 1 | 0 | guanidines; zwitterion | hypoglycemic agent |
n-acetyltyrosine N-acetyl-L-tyrosine : An N-acetyltyrosine in which the chiral centre has L configuration. | 2 | 1 | 0 | N-acetyltyrosine; N-acyl-L-tyrosine | biomarker; EC 2.1.1.4 (acetylserotonin O-methyltransferase) inhibitor; human urinary metabolite |
nebularine nebularine: structure. nebularine : A purine ribonucleoside that is 9H-purine attached to a beta-D-ribofuranosyl residue at position 9 via a glycosidic (N-glycosyl) linkage. | 2.05 | 1 | 0 | purine ribonucleoside; purines D-ribonucleoside | fungal metabolite |
tyrosine methyl ester tyrosine methyl ester: RN given refers to (L)-isomer. methyl L-tyrosinate : An L-tyrosyl ester that is the methyl ester of L-tyrosine. | 2 | 1 | 0 | L-tyrosyl ester; methyl ester | |
D-serine [no description available] | 2.73 | 3 | 0 | D-alpha-amino acid; serine zwitterion; serine | Escherichia coli metabolite; human metabolite; NMDA receptor agonist |
D-tyrosine [no description available] | 2 | 1 | 0 | D-alpha-amino acid zwitterion; D-alpha-amino acid; tyrosine | Escherichia coli metabolite |
D-valine D-valine : The D-enantiomer of valine. | 2.06 | 1 | 0 | D-alpha-amino acid zwitterion; D-alpha-amino acid; valine | |
phenylalanine [no description available] | 2 | 1 | 0 | D-alpha-amino acid zwitterion; D-alpha-amino acid; phenylalanine | |
2-aminoadenosine [no description available] | 2.05 | 1 | 0 | purine nucleoside | |
2-(methylamino)isobutyric acid alpha-(methylamino)isobutyric acid : A non-proteinogenic alpha-amino acid that is isobutyric acid in which the alpha-hydrogen has been replaced by a methylamino group. | 2.06 | 1 | 0 | alanine derivative; alpha-amino acid zwitterion; non-proteinogenic alpha-amino acid; secondary amino compound | human urinary metabolite |
methyl tryptophan, (l-trp)-isomer [no description available] | 2 | 1 | 0 | | |
nicotine (S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. | 3.08 | 1 | 0 | 3-(1-methylpyrrolidin-2-yl)pyridine | anxiolytic drug; biomarker; immunomodulator; mitogen; neurotoxin; nicotinic acetylcholine receptor agonist; peripheral nervous system drug; phytogenic insecticide; plant metabolite; psychotropic drug; teratogenic agent; xenobiotic |
1-aminocyclobutanecarboxylic acid 1-aminocyclobutanecarboxylic acid: RN given refers to unlabeled cpd | 2.05 | 1 | 0 | L-alpha-amino acid | |
droxidopa Droxidopa: A synthetic precursor of norepinephrine that is used in the treatment of PARKINSONIAN DISORDERS and ORTHOSTATIC HYPOTENSION.. droxidopa : A serine derivative that is L-serine substituted at the beta-position by a 3,4-dihydroxyphenyl group. A prodrug for noradrenalone, it is used for treatment of neurogenic orthostatic hypotension | 2 | 1 | 0 | catechols; L-tyrosine derivative | antihypertensive agent; prodrug; vasoconstrictor agent |
6-chloropurine riboside [no description available] | 2.05 | 1 | 0 | | |
thiazolidine-4-carboxylic acid, (r)-isomer l-4-thiazolidinecarboxylic acid: structure in first source. L-thioproline : An optically active version of thioproline having L-configuration.. thioproline : A sulfur-containing amino acid that is proline in which the methylene group at position 4 is replaced by a sulfur atom. | 2.06 | 1 | 0 | thiazolidinemonocarboxylic acid; thioproline | geroprotector; metabolite |
2,2-dimethyl-beta-alanine [no description available] | 2 | 1 | 0 | | |
6'-o-methylguanosine [no description available] | 2.05 | 1 | 0 | | |
8-aminoadenosine [no description available] | 2.05 | 1 | 0 | | |
3,4-dehydroproline 3,4-dehydroproline: RN given refers to cpd without stereoisomeric designation | 1.98 | 1 | 0 | | |
5'-n-methylcarboxamideadenosine 5'-N-methylcarboxamideadenosine: RN given refers to (beta-D)-isomer | 3.08 | 1 | 0 | | |
pyrrole-3-carboxylic acid [no description available] | 1.98 | 1 | 0 | pyrrolecarboxylic acid | metabolite; Penicillium metabolite |
n-methyladenosine N-methyladenosine: is a inhibitor of cell differentiation. N(6)-methyladenosine : A methyladenosine compound with one methyl group attached to N(6) of the adenine nucleobase. | 2.05 | 1 | 0 | methyladenosine | |
tert-butylbicyclophosphorothionate tert-butylbicyclophosphorothionate: binds to GABA & ion recognition sites; structure given in first source | 3.08 | 1 | 0 | organic thiophosphate | |
methoctramine methoctramine: structure given in first source. methoctramine : A tetramine that is N,N'-bis(6-aminohexyl)octane-1,8-diamine where the primary amino groups both carry 2-methoxybenzyl substituents.. methoctramine tetrahydrochloride : A hydrochloride obtained by combining methoctramine with four molar equivalents of hydrochloric acid. | 3.08 | 1 | 0 | hydrochloride | muscarinic antagonist |
2-aminobicyclo(2,2,1)heptane-2-carboxylic acid 2-aminobicyclo(2,2,1)heptane-2-carboxylic acid: amino acid analog; releases insulin; RN given refers to unlabeled cpd without isomeric designation | 2 | 1 | 0 | monoterpenoid | |
proline 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.. proline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2. | 2.7 | 3 | 0 | 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 |
alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid [no description available] | 3.08 | 1 | 0 | | |
abrine abrine: from seeds of Abrus precatorius; structure in first source. N(alpha)-methyl-L-tryptophan : A N-methyl-L-alpha-amino acid that is the N(alpha)-methyl derivative of L-tryptophan. | 2 | 1 | 0 | L-tryptophan derivative; N-methyl-L-alpha-amino acid zwitterion; N-methyl-L-alpha-amino acid | Escherichia coli metabolite |
atropine tropan-3alpha-yl 3-hydroxy-2-phenylpropanoate : A tropane alkaloid that is (1R,5)-8-methyl-8-azabicyclo[3.2.1]octane substituted by a (3-hydroxy-2-phenylpropanoyl)oxy group at position 3. | 3.08 | 1 | 0 | | |
D-leucine [no description available] | 2 | 1 | 0 | D-alpha-amino acid zwitterion; D-alpha-amino acid; leucine | bacterial metabolite; Saccharomyces cerevisiae metabolite |
alpha-aminobutyric acid alpha-aminobutyric acid: RN given refers to cpd without isomeric designation. alpha-aminobutyric acid : An alpha-amino acid that is butyric acid bearing a single amino substituent located at position 2.. D-alpha-aminobutyric acid : An optically active form of alpha-aminobutyric acid having D-configuration. | 2.05 | 1 | 0 | alpha-aminobutyric acid; D-alpha-amino acid | |
n(6),n(6)-dimethyladenosine N(6),N(6)-dimethyladenosine : A methyladenosine compound with two methyl groups attached to N(6) of the adenine nucleobase. | 2.05 | 1 | 0 | hydrocarbyladenosine | |
L-cycloserine L-cycloserine : A 4-amino-1,2-oxazolidin-3-one that has S configuration. An antibiotic isolated from Erwinia uredovora. | 2.06 | 1 | 0 | 4-amino-1,2-oxazolidin-3-one | anti-HIV agent; anticonvulsant; EC 2.3.1.50 (serine C-palmitoyltransferase) inhibitor |
prolinol prolinol: RN given refers to cpd without isomeric designation; structure. prolinol : An amino alcohol formed by reduction of the amino acid proline. | 2.06 | 1 | 0 | | |
mercaptopurine Mercaptopurine: An antimetabolite antineoplastic agent with immunosuppressant properties. It interferes with nucleic acid synthesis by inhibiting purine metabolism and is used, usually in combination with other drugs, in the treatment of or in remission maintenance programs for leukemia.. purine-6-thiol : A thiol that is the tautomer of mercaptopurine.. mercaptopurine : A member of the class of purines that is 6,7-dihydro-1H-purine carrying a thione group at position 6. An adenine analogue, it is used in the treatment of acute lymphocytic leukemia (ALL), chronic myeloid leukemia (CML), Crohn's disease, and ulcerative colitis. | 2.05 | 1 | 0 | aryl thiol; purines; thiocarbonyl compound | anticoronaviral agent; antimetabolite; antineoplastic agent |
thioinosine Thioinosine: Sulfhydryl analog of INOSINE that inhibits nucleoside transport across erythrocyte plasma membranes, and has immunosuppressive properties. It has been used similarly to MERCAPTOPURINE in the treatment of leukemia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p503) | 2.05 | 1 | 0 | | |
n-acetyltryptophan N-acetyl-L-tryptophan : A N-acetyl-L-amino acid that is the N-acetyl derivative of L-tryptophan. | 2 | 1 | 0 | L-tryptophan derivative; N-acetyl-L-amino acid | metabolite |
2-mercaptobenzimidazole 2-mercaptobenzimidazole: purine synthesis antimetabolite; RN given refers to parent cpd | 2.05 | 1 | 0 | | |
phenylalanine methyl ester phenylalanine methyl ester: RN given refers to (L)-isomer. methyl L-phenylalaninate : An alpha-amino acid ester that is the methyl ester of L-phenylalanine. | 2 | 1 | 0 | alpha-amino acid ester; L-phenylalanine derivative | |
thiouracil Thiouracil: Occurs in seeds of Brassica and Crucifera species. Thiouracil has been used as antithyroid, coronary vasodilator, and in congestive heart failure although its use has been largely supplanted by other drugs. It is known to cause blood dyscrasias and suspected of terato- and carcinogenesis.. thiouracil : A nucleobase analogue that is uracil in which the oxo group at C-2 is replaced by a thioxo group. | 2.05 | 1 | 0 | nucleobase analogue; thiocarbonyl compound | antithyroid drug; metabolite |
pyrimidine-2-thiol pyrimidine-2-thiol: RN given refers to parent cpd. pyrimidine-2-thiol : Pyrimidine substituted at C-2 by a sulfanyl group. | 2.05 | 1 | 0 | aryl thiol; pyrimidines | allergen; corrosion inhibitor |
thioguanine anhydrous Thioguanine: An antineoplastic compound which also has antimetabolite action. The drug is used in the therapy of acute leukemia.. tioguanine : A 2-aminopurine that is the 6-thiono derivative of 2-amino-1,9-dihydro-6H-purine. Incorporates into DNA and inhibits synthesis. Used in the treatment of leukaemia. | 2.05 | 1 | 0 | 2-aminopurines | anticoronaviral agent; antimetabolite; antineoplastic agent |
2-thiopyridine 2-thiopyridine: RN given refers to parent cpd. pyridine-2-thiol : Pyridine substituted at C-2 by a sulfanyl group. | 2.05 | 1 | 0 | aryl thiol; pyridines | allergen; fluorescence quencher |
4-thiopyridine 4-thiopyridine: RN given refers to 4-thiopyridine cpd | 2.05 | 1 | 0 | | |
6-thioguanosine 6-thioguanosine: RN given refers to cpd without isomeric designation | 2.05 | 1 | 0 | purine nucleoside | |
leukotriene b4 Leukotriene B4: The major metabolite in neutrophil polymorphonuclear leukocytes. It stimulates polymorphonuclear cell function (degranulation, formation of oxygen-centered free radicals, arachidonic acid release, and metabolism). (From Dictionary of Prostaglandins and Related Compounds, 1990). leukotriene B4 : A leukotriene composed of (6Z,8E,10E,14Z)-icosatetraenoic acid having (5S)- and (12R)-hydroxy substituents. It is a lipid mediator of inflammation that is generated from arachidonic acid via the 5-lipoxygenase pathway. | 3.08 | 1 | 0 | dihydroxy monocarboxylic acid; hydroxy polyunsaturated fatty acid; leukotriene; long-chain fatty acid | human metabolite; mouse metabolite; plant metabolite; vasoconstrictor agent |
leukotriene d4 Leukotriene D4: One of the biologically active principles of SRS-A. It is generated from LEUKOTRIENE C4 after partial hydrolysis of the peptide chain, i.e., cleavage of the gamma-glutamyl portion. Its biological actions include stimulation of vascular and nonvascular smooth muscle, and increases in vascular permeability. (From Dictionary of Prostaglandins and Related Compounds, 1990). leukotriene D4 : A leukotriene that is (7E,9E,11Z,14Z)-icosa-7,9,11,14-tetraenoic acid substituted by a hydroxy group at position 5 (5S) and a L-cysteinylglycinyl group at position 6 (6R). | 3.08 | 1 | 0 | dipeptide; leukotriene; organic sulfide | bronchoconstrictor agent; human metabolite; mouse metabolite |
triprolidine Triprolidine: Histamine H1 antagonist used in allergic rhinitis; ASTHMA; and URTICARIA. It is a component of COUGH and COLD medicines. It may cause drowsiness.. triprolidine : An N-alkylpyrrolidine that is acrivastine in which the pyridine ring is lacking the propenoic acid substituent. It is a sedating antihistamine that is used (generally as the monohydrochloride monohydrate) for the relief of the symptoms of uticaria, rhinitis, and various pruritic skin disorders. | 3.08 | 1 | 0 | N-alkylpyrrolidine; olefinic compound; pyridines | H1-receptor antagonist |
naloxone Naloxone: A specific opiate antagonist that has no agonist activity. It is a competitive antagonist at mu, delta, and kappa opioid receptors.. naloxone : A synthetic morphinane alkaloid that is morphinone in which the enone double bond has been reduced to a single bond, the hydrogen at position 14 has been replaced by a hydroxy group, and the methyl group attached to the nitrogen has been replaced by an allyl group. A specific opioid antagonist, it is used (commonly as its hydrochloride salt) to reverse the effects of opioids, both following their use of opioids during surgery and in cases of known or suspected opioid overdose. | 3.08 | 1 | 0 | morphinane alkaloid; organic heteropentacyclic compound; tertiary alcohol | antidote to opioid poisoning; central nervous system depressant; mu-opioid receptor antagonist |
n-methylalanine N-methylalanine: RN given refers to parent cpd(DL-Ala)-isomer. methyl-L-alanine : Any alanine derivative that is L-alanine having one or more methyl groups attached to the amino group.. N-methyl-L-alanine : A methyl-L-alanine in which one of the the amino hydrogen of L-alanine is replaced by a methyl group. | 2.06 | 1 | 0 | amino acid zwitterion; methyl-L-alanine | |
u-44619 thromboxane A2 agonist : An agonist that binds to and activates thromboxane A2 receptors. | 3.08 | 1 | 0 | | |
2-amino-6-chloropurine 6-chloroguanine: an antimalarial that inhibits hypoxanthine-guanine-xanthine phosphoribosyltransferase; structure in first source. 6-chloroguanine : An organochlorine compound that is 7H-purin-2-amine substituted by a chloro group at position 6. | 2.05 | 1 | 0 | 2-aminopurines; organochlorine compound | |
6-benzylthioinosine 6-benzylthioinosine: a subversive substrate of T gondii adenosine kinase; structure in first source | 2.05 | 1 | 0 | | |
1-methyl-d-lysergic acid butanolamide [no description available] | 3.08 | 1 | 0 | ergot alkaloid; monocarboxylic acid amide | serotonergic antagonist; sympatholytic agent; vasoconstrictor agent |
guanosine ribonucleoside : Any nucleoside where the sugar component is D-ribose. | 2.05 | 1 | 0 | guanosines; purines D-ribonucleoside | fundamental metabolite |
inosine [no description available] | 2.05 | 1 | 0 | inosines; purines D-ribonucleoside | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
ganciclovir [no description available] | 2.05 | 1 | 0 | 2-aminopurines; oxopurine | antiinfective agent; antiviral drug |
allopurinol Allopurinol: A XANTHINE OXIDASE inhibitor that decreases URIC ACID production. It also acts as an antimetabolite on some simpler organisms.. allopurinol : A bicyclic structure comprising a pyrazole ring fused to a hydroxy-substituted pyrimidine ring. | 2.05 | 1 | 0 | nucleobase analogue; organic heterobicyclic compound | antimetabolite; EC 1.17.3.2 (xanthine oxidase) inhibitor; gout suppressant; radical scavenger |
8-hydroxyguanosine 8-hydroxyguanosine: immunostimulant for B lymphocytes; structure given in first source | 2.05 | 1 | 0 | purine nucleoside | |
7-deazainosine [no description available] | 2.05 | 1 | 0 | | |
7-methylinosine 7-methylinosine : A positively charged methylinosine in which a single methyl substituent is located at position 7 on the hypoxanthine ring. | 2.05 | 1 | 0 | inosines; organic cation | metabolite |