Using COC(=O)[C@H](CCSC)NC(=O)c1ccc(NC(=O)c2cccnc2)cc1-c1ccccc1C to produce CSCC[C@H](NC(=O)c1ccc(NC(=O)c2cccnc2)cc1-c1ccccc1C)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.