[{"from": "human", "value": "Describe this molecule. [C][=N][N][N][=C][Ring1][Branch1][N][=C][Branch1][=Branch1][N][C][Ring1][=Branch2][=O][N]"}, {"from": "gpt", "value": "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."}]