Using C[O-], CS(=O)c1sc(-c2cc[nH]n2)c2c1C(=O)CC(C)(C)C2 to produce COc1sc(-c2cc[nH]n2)c2c1C(=O)CC(C)(C)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.