Using CCOC(=O)C1(C(=O)COc2ccc(Cl)cc2)CC1, C[S+](C)(C)=O to produce CCOC(=O)C1(C2(COc3ccc(Cl)cc3)CO2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.