[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a penicillin antibiotic having a 6beta-2-carboxy-2-phenylacetamido side-chain. It has a role as an antibacterial drug. It is a penicillin and a penicillin allergen. It is a conjugate acid of a carbenicillin(2-)."}, {"from": "gpt", "value": "[C][C][Branch2][Ring2][=N][C@@H1][Branch2][Ring2][Ring2][N][C@H1][Branch1][Ring2][S][Ring1][Branch1][C@@H1][Branch1][Branch1][C][Ring1][Branch1][=O][N][C][=Branch1][C][=O][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O][C]"}]