Pharmacologic Substance
pteridine
Subclass of:
Heterocyclic Compounds, 2-Ring
Definitions related to pteridines:
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10-membered bicyclic aromatic ring structure with 4 nitrogen heteroatoms at the 1,3,6,9 positions, giving the appearance of fused pyrimidine and pyrazine rings; 2-amino-4-keto derivative is characteristic of the folacins and other pterins.CRISP ThesaurusNational Institutes of Health, 2006
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Compounds based on pyrazino[2,3-d]pyrimidine which is a pyrimidine fused to a pyrazine, containing four NITROGEN atoms.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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