| D010879 |
Piperazines |
Compounds that are derived from PIPERAZINE. |
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| D011687 |
Purines |
A series of heterocyclic compounds that are variously substituted in nature and are known also as purine bases. They include ADENINE and GUANINE, constituents of nucleic acids, as well as many alkaloids such as CAFFEINE and THEOPHYLLINE. Uric acid is the metabolic end product of purine metabolism. |
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| D011720 |
Pyrazoles |
Azoles of two nitrogens at the 1,2 positions, next to each other, in contrast with IMIDAZOLES in which they are at the 1,3 positions. |
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| D004305 |
Dose-Response Relationship, Drug |
The relationship between the dose of an administered drug and the response of the organism to the drug. |
Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response |
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| D004791 |
Enzyme Inhibitors |
Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction. |
Enzyme Inhibitor,Inhibitor, Enzyme,Inhibitors, Enzyme |
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| D000068677 |
Sildenafil Citrate |
A PHOSPHODIESTERASE TYPE-5 INHIBITOR; VASODILATOR AGENT and UROLOGICAL AGENT that is used in the treatment of ERECTILE DYSFUNCTION and PRIMARY PULMONARY HYPERTENSION. |
1-((3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxyphenyl)sulfonyl)-4-methylpiperazine citrate,Acetildenafil,Desmethyl Sildenafil,Desmethylsildenafil,Homosildenafil,Hydroxyhomosildenafil,NCX-911,Revatio,Sildenafil,Sildenafil Lactate,Sildenafil Nitrate,UK 92480-10,UK-92,480-10,Viagra,Citrate, Sildenafil,Lactate, Sildenafil,NCX 911,NCX911,Nitrate, Sildenafil,Sildenafil, Desmethyl,UK 92,480 10,UK 92480 10,UK 9248010 |
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| D013329 |
Structure-Activity Relationship |
The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. |
Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships |
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| D013449 |
Sulfonamides |
A group of compounds that contain the structure SO2NH2. |
Sulfonamide,Sulfonamide Mixture,Sulfonamide Mixtures,Mixture, Sulfonamide,Mixtures, Sulfonamide |
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| D014227 |
Triazines |
Heterocyclic rings containing three nitrogen atoms, commonly in 1,2,4 or 1,3,5 or 2,4,6 formats. Some are used as HERBICIDES. |
Triazine,Benzotriazines |
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| D014442 |
Monophenol Monooxygenase |
An enzyme of the oxidoreductase class that catalyzes the reaction between L-tyrosine, L-dopa, and oxygen to yield L-dopa, dopaquinone, and water. It is a copper protein that acts also on catechols, catalyzing some of the same reactions as CATECHOL OXIDASE. EC 1.14.18.1. |
Dopa Oxidase,Phenoloxidase,Tyrosinase,Cresolase,Phenol Oxidase,Phenoloxidase A,Phenoloxidase B,Monooxygenase, Monophenol,Oxidase, Dopa,Oxidase, Phenol |
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