Using CC(C)(C)c1ccc2c(c1)Cc1cc(C(C)(C)C)ccc1S2, C=O to produce CC(C)(C)c1ccc2c(c1)C(CO)c1cc(C(C)(C)C)ccc1S2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.