Using COc1cc2c(c(Cl)c1Cl)C(=O)C(C)(c1ccc(Cl)cc1)C2=O to produce CC1(c2ccc(Cl)cc2)C(=O)c2cc(O)c(Cl)c(Cl)c2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.