Using CC1(C)[C@H](C(=O)O)[C@@H]1C(O)C1CCSC1=O to produce CC1(C)[C@@H]2[C@H]1C(=O)O[C@H]2C1CCSC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.