Using CC(C)(C)OC(=O)C(CNC(=O)C1(CC(=O)OCc2ccccc2)CCCC1)Cc1ccc(Cl)c(Cl)c1 to produce CC(C)(C)OC(=O)C(CNC(=O)C1(CC(=O)O)CCCC1)Cc1ccc(Cl)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.