[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a third-generation cephalosporin antibiotic bearing pyridinium-1-ylmethyl and {[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-{[(2-carboxypropan-2-yl)oxy]imino}acetamido groups at positions 3 and 7, respectively, of the cephem skeleton. It has a role as an antibacterial drug, an EC 2.4.1.129 (peptidoglycan glycosyltransferase) inhibitor and a drug allergen. It is a cephalosporin and an oxime O-ether. It is a conjugate acid of a ceftazidime(1-)."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][O][/N][=C][Branch1][O][/C][=C][S][C][=Branch1][Ring2][=N][Ring1][Branch1][N][\\C][=Branch1][C][=O][N][C@H1][C@@H1][N][Branch1][Branch1][C][Ring1][Ring2][=O][C][=Branch1][P][=C][Branch1][Branch1][C][S][Ring1][Branch2][C][N+1][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O-1]"}]