Using COP(=O)(C[C@@H](NC(=O)OCc1ccccc1)C(=O)Nc1ccc(N2CCOCC2=O)cc1)OC to produce COP(=O)(C[C@@H](N)C(=O)Nc1ccc(N2CCOCC2=O)cc1)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.