Using CC(C)(C)C(=O)COC(=O)C1(C(=O)OCc2ccccc2)CCCN(C(=O)OCC(Cl)(Cl)Cl)C1 to produce CC(C)(C)C(=O)COC(=O)C1(C(=O)OCc2ccccc2)CCCNC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.