[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=N][C][=C][Branch1][Branch2][C][=Branch1][C][=O][N][Ring1][#Branch1][N][=C][N][Ring1][Branch2][C@H1][C@@H1][Branch1][S][C@@H1][Branch1][N][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a purine nucleoside. It is functionally related to a hypoxanthine. It is a conjugate acid of a 9-riburonosylhypoxanthine(1-)."}]