Using COC(=O)C(NC(=O)OCc1ccccc1)C1CC(=O)N(Cc2ccc(OC)cc2OC)C1=O to produce COC(=O)C(N)C1CC(=O)N(Cc2ccc(OC)cc2OC)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.