Using O=S(=O)([O-])CO, NCc1nnc(SCC2=C(C(=O)O)N3C(=O)C(NC(=O)Cc4cccs4)[C@H]3SC2)s1 to produce O=C(Cc1cccs1)NC1C(=O)N2C(C(=O)[O-])=C(CSc3nnc(CNCS(=O)(=O)O)s3)CS[C@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.