Using O=C(CNC1Cc2ccccc2C1)OCc1ccccc1, O=C(Cl)CCl to produce O=C(CN(C(=O)CCl)C1Cc2ccccc2C1)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.