Using CCOC(=O)CN(CCC(=O)NC1CC1)C(=O)OCc1ccccc1 to produce O=C1CN(C(=O)OCc2ccccc2)CC1C(=O)NC1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.