[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a cephalosporin with acetoxymethyl and 2(pyridin-4-ylsulfanyl)acetamido substituents at positions 3 and 7, respectively, of the cephem skeleton. It is used (as its sodium salt) as an antibiotic, being effective against gram-negative and gram-positive organisms. It has a role as an antibacterial drug. It is a conjugate acid of a cephapirin(1-)."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O][C][C][=C][Branch2][Ring1][P][N][C@@H1][Branch2][Ring1][#Branch1][C@@H1][Branch1][Branch1][C][Ring1][Ring2][=O][N][C][=Branch1][C][=O][C][S][C][=C][C][=N][C][=C][Ring1][=Branch1][S][C][Ring2][Ring1][Ring2][C][=Branch1][C][=O][O]"}]