Using COC(=O)[C@H](CN)NC(=O)OC(C)(C)C, O=Cc1cnc(NCC(=O)O)s1 to produce COC(=O)[C@H](CNC(=O)CNc1ncc(C=O)s1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.