Using COC(=O)c1cccc(CN(Cc2ccc(Cl)cc2Cl)C(=O)OC(C)(C)C)c1 to produce CC(C)(C)OC(=O)N(Cc1cccc(C(=O)O)c1)Cc1ccc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.