[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=Branch2][Ring2][=Branch2][=C][Branch2][Ring1][S][N][C@H1][Branch1][Ring2][S][Ring1][=Branch1][C@@H1][Branch1][Branch1][C][Ring1][Branch1][=O][N][C][=Branch1][C][=O][C@@H1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][C][=O][O][Cl]"}, {"from": "gpt", "value": "The molecule is the anhydrous form of cefaclor, a beta-lactam, second-generation cephalosporin with antibacterial activity. Cefaclor binds to and inactivates penicillin-binding proteins (PBPs) located on the inner membrane of the bacterial cell wall. Inactivation of PBPs interferes with the cross-linkage of peptidoglycan chains necessary for bacterial cell wall strength and rigidity. This results in the weakening of the bacterial cell wall and causes cell lysis."}]