Using COC(=O)CCCCCCCCCCN(C(=O)c1ccc(Cl)cc1)c1ccc(OC)cc1 to produce COc1ccc(N(CCCCCCCCCCC(=O)O)C(=O)c2ccc(Cl)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.