Using COc1ccc(C(O)C(=O)NCCc2ccc(OC)c(OC)c2Cl)cc1 to produce COc1ccc(C(O)CNCCc2ccc(OC)c(OC)c2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.