Using COC(=O)c1sc2cnc(SC)nc2c1-c1cnn(C)c1, Oc1ccccc1 to produce COC(=O)c1sc2cnc(S(C)=O)nc2c1-c1cnn(C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.