Using CC(=O)C1(c2ccc(Cl)c(Cl)c2)CC1CNC(=O)OC(C)(C)C to produce CC(O)C1(c2ccc(Cl)c(Cl)c2)CC1CNC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.