Using O=C1NC(=O)c2ccccc21, CC1CN(Cc2ccccc2Cl)CC(CCl)O1 to produce CC1CN(Cc2ccccc2Cl)CC(CN2C(=O)c3ccccc3C2=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.