Using O=C(Cl)c1ccc(Cl)cc1, CCOC(=O)Cc1c(CCN)[nH]c2ccc(OC)cc12 to produce CCOC(=O)Cc1c(CCNC(=O)c2ccc(Cl)cc2)[nH]c2ccc(OC)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.