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Modulating the pyrimidine metabolism pharmacologically has therapeutical uses, and could implement in cancer treatment. [ 10 ] Pyrimidine synthesis inhibitors are used in active moderate to severe rheumatoid arthritis and psoriatic arthritis , as well as in multiple sclerosis .
It is not the committed step to purine synthesis because PRPP is also used in pyrimidine synthesis and salvage pathways. The first committed step is the reaction of PRPP, glutamine and water to 5'-phosphoribosylamine (PRA), glutamate , and pyrophosphate - catalyzed by amidophosphoribosyltransferase , which is activated by PRPP and inhibited by ...
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.
Download as PDF; Printable version; In other projects Wikidata item; ... Pyrimidine analogues are antimetabolites which mimic the structure of metabolic pyrimidines.
Leflunomide, sold under the brand name Arava among others, is an immunosuppressive disease-modifying antirheumatic drug , [8] used in active moderate-to-severe rheumatoid arthritis and psoriatic arthritis. It is a pyrimidine synthesis inhibitor that works by inhibiting dihydroorotate dehydrogenase. [9] Bottle of Leflunomide (Arava) and tablet
Thiopurines such as thioguanine are used to treat acute leukemias and remissions in acute granulocytic leukemias. Azathioprine is the main immunosuppressive cytotoxic substance. A prodrug, it is widely used in transplantation to control rejection reactions. It is nonenzymatically cleaved to mercaptopurine, a purine analogue that inhibits DNA ...
Fluoropyrimidines are a general class organic compounds in which the substituent(s) around a pyrimidine ring include at least one fluorine atom. The term "fluoropyrimidines" is often used more specifically to refer to the subset of this class that are antimetabolites and are used as anticancer medications, which include: Capecitabine; Carmofur ...
Imidazo[1,2-a]pyridine—an example of imidazopyridine and a core structure of zolpidem and some compounds described below.. An imidazopyridine is a nitrogen containing heterocycle that is also a class of drugs that contain this same chemical substructure.