[{"from": "human", "value": "Describe this molecule. [C][C][C][N][C][C][C][=Branch1][C][=O][C@@H1][Ring1][=Branch1][C][Ring1][#Branch2]"}, {"from": "gpt", "value": "The molecule is a member of indolizines. It is a conjugate base of an (8aS)-octahydroindolizin-1-one(1+)."}]