Using OO, COc1cc(SC)ccc1C1=NC2=C3C=NC(C)(C)C(=O)C3CC(=O)C2=N1 to produce COc1cc(S(C)=O)ccc1C1=NC2=C3C=NC(C)(C)C(=O)C3CC(=O)C2=N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.