Using C=C1CC(=O)O1, O=C(Cc1cccs1)N[C@@H]1C(=O)N2C(C(=O)[O-])=C(CO)CS[C@H]12 to produce CC(=O)CC(=O)OCC1=C(C(=O)[O-])N2C(=O)[C@@H](NC(=O)Cc3cccs3)[C@H]2SC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.