SMILES: C12=NNN=C1N=C(NC2=O)N
Description: The molecule is a triazolopyrimidine that consists of 3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidine bearing amino and oxo substituents at positions 5 and 7 respectively. It has a role as an antimetabolite, an antineoplastic agent and an EC 2.4.2.1 (purine-nucleoside phosphorylase) inhibitor. It is a member of triazolopyrimidines and a nucleobase analogue.