[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=C][Branch1][=Branch2][O][C][=Branch1][C][=O][O][Ring1][=Branch1][C][O][C][=Branch1][C][=O][C@H1][C][Branch2][Ring1][=C][S][C@H1][N][Ring1][Branch1][C][=Branch1][C][=O][C@H1][Ring1][Branch1][N][C][=Branch1][C][=O][C@@H1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a penicillanic acid ester that is the (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl ester of ampicillin. It is a prodrug of ampicillin. It has a role as a prodrug. It is a penicillanic acid ester and a ketene acetal. It is functionally related to an ampicillin."}]