Using CS(=O)c1sc(-c2ccccn2)c2c1C(=O)CC(C)(C)C2, OCCS to produce CC1(C)CC(=O)c2c(SCCO)sc(-c3ccccn3)c2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.