Classification Term: 400

Pyrazolo[3,4-d]pyrimidines (ontology term: CHEMONTID:0004387)

Aromatic heterocyclic compounds containing a pyrazolo[3,4-d]pyrimidine ring system, which consists of a pyrazole ring fused to but and not sharing a nitrogen atom with a pyrimidine ring." [PMID:18257513]

found 2 associated metabolites at sub_class metabolite taxonomy ontology rank level.

Ancestor: Pyrazolopyrimidines

Child Taxonomies: There is no child term of current ontology term.

Allopurinol

1,5-Dihydro-4H-pyrazolo(3,4-D)pyrimidine-4-one

C5H4N4O (136.03850939999998)


Allopurinol is only found in individuals that have used or taken this drug. It is a xanthine oxidase inhibitor that decreases uric acid production. It also acts as an antimetabolite on some simpler organisms. [PubChem]Allopurinol and its active metabolite, oxypurinol, inhibits the enzyme xanthine oxidase, blocking the conversion of the oxypurines hypoxanthine and xanthine to uric acid. Elevated concentrations of oxypurine and oxypurine inhibition of xanthine oxidase through negative feedback results in a decrease in the concentrations of uric acid in the serum and urine. Allopurinol also facilitates the incorporation of hypoxanthine and xanthine into DNA and RNA, leading to a feedback inhibition of de novo purin synthesis and a decrease in serum uric acid concentrations as a result of an increase in nucleotide concentration. M - Musculo-skeletal system > M04 - Antigout preparations > M04A - Antigout preparations > M04AA - Preparations inhibiting uric acid production D018501 - Antirheumatic Agents > D006074 - Gout Suppressants C471 - Enzyme Inhibitor > C1637 - Xanthine Oxidase Inhibitor D000975 - Antioxidants > D016166 - Free Radical Scavengers D020011 - Protective Agents > D000975 - Antioxidants C26170 - Protective Agent > C921 - Uricosuric Agent D009676 - Noxae > D000963 - Antimetabolites D004791 - Enzyme Inhibitors Allopurinol is a potent and orally active xanthine oxidase inhibitor with an IC50 value of 0.2-50 μM. Allopurinol can be used in the research of hyperuricemia and gout. Allopurinol decreases the expression of HIF-1α and HIF-2α protein. Allopurinol shows anti-depressant and anti-nociception activity. Anti-leishmanial effect[1][2][3][4][5].

   

1H-Pyrazolo[3,4-d]pyrimidin-4-amine

1H-Pyrazolo[3,4-d]pyrimidin-4-amine

C5H5N5 (135.054493)


D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents > D000924 - Anticholesteremic Agents D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents D009676 - Noxae > D000963 - Antimetabolites Pyrazoloadenine is a potent RET (REarranged during Transfection) lung cancer oncoprotein inhibitor. Pyrazoloadenine shows anticancer activity[1][2].