[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=O][O][C][O][C][=Branch1][C][=O][C@H1][C][Branch2][Ring1][O][S][C@H1][N][Ring1][Branch1][C][=Branch1][C][=O][C@H1][Ring1][Branch1][N][C][=Branch1][C][=O][C][C][=C][C][=C][C][=C][Ring1][=Branch1][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a penicillanic acid ester that is the acetoxymethyl ester of benzylpenicillin. It is a prodrug for benzylpenicillin. It has a role as an antibacterial drug and a prodrug. It is a penicillanic acid ester and a semisynthetic derivative. It is functionally related to a benzylpenicillin."}]