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Pyrimidine is a heterocyclic amine that contains two nitrogen atoms in an unsaturated six-membered ring. An example of a molecule that contains pyrimidine is thiamine, which is also known as vitamin B1. Thiamine deficiency produces beriberi. Pyrimidine is a component of the nucleobases cytosine, uracil, and thymine.
Pyrimidine (C 4 H 4 N 2; / p ɪ ˈ r ɪ. m ɪ ˌ d iː n, p aɪ ˈ r ɪ. m ɪ ˌ d iː n /) is an aromatic, heterocyclic, organic compound similar to pyridine (C 5 H 5 N). [3] One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has nitrogen atoms at positions 1 and 3 in the ring.
Pyrimidines are organic compounds that contain the pyrimidine base structure. Subcategories. This category has the following 9 subcategories, out of 9 total. A.
An imidazopyridine is a nitrogen containing heterocycle that is also a class of drugs that contain this same chemical substructure. In general, they are GABA A receptor agonists, however recently proton pump inhibitors, aromatase inhibitors, NSAIDs and other classes of drugs in this class have been developed as well. Despite usually being ...
A drug combination chart designed for harm reduction by TripSit [1] Polysubstance use or multisubstance use is the use of combinations of psychoactive substances with both legal and illegal substances. This page lists polysubstance combinations that are entheogenic, recreational, or off-label indicated use of pharmaceuticals.
Pyrimidine analogues are antimetabolites which mimic the structure of metabolic pyrimidines. Examples. Nucleobase analogues. Fluorouracil (5FU), ...
Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together.It is water-soluble.Purine also gives its name to the wider class of molecules, purines, which include substituted purines and their tautomers.
Examples of heterocyclic compounds include all of the nucleic acids, the majority of drugs, most biomass (cellulose and related materials), and many natural and synthetic dyes. More than half of known compounds are heterocycles. [3] 59% of US FDA-approved drugs contain nitrogen heterocycles. [4]