Using O=C(Cl)c1ccccc1, COc1cc2c(cc1OC)C(C(CO)CO)NCC2 to produce COc1cc2c(cc1OC)C(C(CO)CO)N(C(=O)c1ccccc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.