| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
dihydroxyphenylalanine
Dihydroxyphenylalanine: A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.. dopa : A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring. | 3.22 | 6 | 0 | hydroxyphenylalanine;
non-proteinogenic alpha-amino acid;
tyrosine derivative | human metabolite |
d-alpha tocopherol
Vitamin E: A generic descriptor for all TOCOPHEROLS and TOCOTRIENOLS that exhibit ALPHA-TOCOPHEROL activity. By virtue of the phenolic hydrogen on the 2H-1-benzopyran-6-ol nucleus, these compounds exhibit varying degree of antioxidant activity, depending on the site and number of methyl groups and the type of ISOPRENOIDS.. tocopherol : A collective name for a group of closely related lipids that contain a chroman-6-ol nucleus substituted at position 2 by a methyl group and by a saturated hydrocarbon chain consisting of three isoprenoid units. They are designated as alpha-, beta-, gamma-, and delta-tocopherol depending on the number and position of additional methyl substituents on the aromatic ring. Tocopherols occur in vegetable oils and vegetable oil products, almost exclusively with R,R,R configuration. Tocotrienols differ from tocopherols only in having three double bonds in the hydrocarbon chain.. vitamin E : Any member of a group of fat-soluble chromanols that exhibit biological activity against vitamin E deficiency. The vitamers in this class consists of a chroman-6-ol core which is substituted at position 2 by a methyl group and (also at position 2) either a saturated or a triply-unsaturated hydrocarbon chain consisting of three isoprenoid units. The major function of vitamin E is to act as a natural antioxidant by scavenging free radicals and molecular oxygen.. (R,R,R)-alpha-tocopherol : An alpha-tocopherol that has R,R,R configuration. The naturally occurring stereoisomer of alpha-tocopherol, it is found particularly in sunflower and olive oils. | 2.01 | 1 | 0 | alpha-tocopherol | algal metabolite;
antiatherogenic agent;
anticoagulant;
antioxidant;
antiviral agent;
EC 2.7.11.13 (protein kinase C) inhibitor;
immunomodulator;
micronutrient;
nutraceutical;
plant metabolite |
nimustine
Nimustine: Antineoplastic agent especially effective against malignant brain tumors. The resistance which brain tumor cells acquire to the initial effectiveness of this drug can be partially overcome by the simultaneous use of membrane-modifying agents such as reserpine, calcium antagonists such as nicardipine or verapamil, or the calmodulin inhibitor, trifluoperazine. The drug has also been used in combination with other antineoplastic agents or with radiotherapy for the treatment of various neoplasms.. nimustine : An organochlorine compound that is urea in which the two hydrogens on one of the amino groups are replaced by nitroso and 2-chloroethyl groups and one hydrogen from the other amino group is replaced by a 4-amino-2-methylpyrimidin-5-ylmethyl] group. An antineoplastic agent especially effective against malignant brain tumors. | 1.96 | 1 | 0 | aminopyrimidine;
N-nitrosoureas;
organochlorine compound | alkylating agent;
antineoplastic agent |
5-hydroxydopamine
5-hydroxydopamine: RN given refers to parent cpd | 1.96 | 1 | 0 | catecholamine | |
dopachrome
dopachrome: cyclization product of L-DOPA | 2 | 1 | 0 | orthoquinones | |
5,6-dihydroxy-2-indolylcarboxylic acid
5,6-dihydroxyindole-2-carboxylic acid : A dihydroxyindole that is indole-2-carboxylic acid substituted by hydroxy groups at positions 5 and 6. | 1.97 | 1 | 0 | dihydroxyindole | mouse metabolite |
6-hydroxy-5-methoxy-2-indolylcarboxylic acid
6-hydroxy-5-methoxy-2-indolylcarboxylic acid: metabolite found in urine of mammals having melanotic melanoma | 1.97 | 1 | 0 | | |
2-s-cysteinyldopa
2-S-cysteinyl-DOPA : An L-tyrosine derivative that is L-DOPA in which the hydrogen at position 2 on the phenyl ring is replaced by a cysteinyl group. Found in the urine of patients with melanoma. | 1.97 | 1 | 0 | amino dicarboxylic acid;
aryl sulfide;
catechols;
diamine;
L-tyrosine derivative;
S-conjugate;
S-organyl-L-cysteine | human urinary metabolite |
monoisoamyl-2,3-dimercaptosuccinate
monoisoamyl-2,3-dimercaptosuccinate: monoisoamyl ester of meso-2,3-dimercaptosuccinic acid | 2.01 | 1 | 0 | | |
aminochrome 1
dopaminechrome: structure given in first source. dopaminechrome (enol form) : A member of the class of indolones that is 3,5-dihydro-2H-indole substituted by an oxo group at position 5 and a hydroxy group at position 6.. dopaminechrome (keto form) : A member of the class of indoledione that is 2,3,5,6-tetrahydro-1H-indole carrying oxo groups at positions 5 and 6; major microspecies at pH 7.3. It is an endogenous compound formed during dopamine oxidation and can induce neurotoxicity under certain aberrant conditions and induce Parkinson-like syndrome. | 2 | 1 | 0 | indoledione;
orthoquinones | neurotoxin |
dopaquinone
[no description available] | 2.39 | 2 | 0 | 1,2-benzoquinones;
amino acid zwitterion;
L-phenylalanine derivative | human metabolite;
mouse metabolite |
succimer
Succimer: A mercaptodicarboxylic acid used as an antidote to heavy metal poisoning because it forms strong chelates with them.. succimer : A sulfur-containing carboxylic acid that is succinic acid bearing two mercapto substituents at positions 2 and 3. A lead chelator used as an antedote to lead poisoning. | 2.01 | 1 | 0 | dicarboxylic acid;
dithiol;
sulfur-containing carboxylic acid | chelator |
zinc protoporphyrin ix
[no description available] | 2.01 | 1 | 0 | | |
5-(3,3-dimethyl-1-triazeno)-1-methylimidazole-4-carboxamide
5-(3,3-dimethyl-1-triazeno)-1-methylimidazole-4-carboxamide: metabolite of dacarbazine | 1.96 | 1 | 0 | | |
cysteinyldopa
Cysteinyldopa: Found in large amounts in the plasma and urine of patients with malignant melanoma. It is therefore used in the diagnosis of melanoma and for the detection of postoperative metastases. Cysteinyldopa is believed to be formed by the rapid enzymatic hydrolysis of 5-S-glutathionedopa found in melanin-producing cells. | 3.68 | 10 | 0 | catecholamine;
zwitterion | |
ascorbic acid
Ascorbic Acid: A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.. L-ascorbic acid : The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.. L-ascorbate : The L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants.. vitamin C : Any member of a group of vitamers that belong to the chemical structural class called butenolides that exhibit biological activity against vitamin C deficiency in animals. The vitamers include L-ascorbic acid and its salt, ionized and oxidized forms. | 2.01 | 1 | 0 | ascorbic acid;
vitamin C | coenzyme;
cofactor;
flour treatment agent;
food antioxidant;
food colour retention agent;
geroprotector;
plant metabolite;
skin lightening agent |
dacarbazine
(E)-dacarbazine : A dacarbazine in which the N=N double bond adopts a trans-configuration. | 1.96 | 1 | 0 | dacarbazine | |