[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch2][Ring2][Branch1][C@@H1][C@@][Branch2][Ring1][#C][C@H1][Branch2][Ring1][#Branch2][C@@H1][Branch1][Ring2][O][Ring1][Branch1][N][C@@H1][Ring1][=Branch1][N][C][=C][Ring1][Branch1][N][=C][Branch1][=Branch1][N][C][Ring1][=Branch1][=O][N][O][O][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O]"}, {"from": "gpt", "value": "The molecule is a cyclic purine nucleotide obtained by formation of a bond between positions 3' and 8 of guanosine 5'-triphosphate. It is a conjugate acid of an (8S)-3',8-cyclo-7,8-dihydroguanosine 5'-triphosphate(4-)."}]