Using C[O-], CS(=O)(=O)c1nnc(-c2ccc3ncn(-c4ccc(OC(F)(F)F)cc4)c3c2)o1 to produce COc1nnc(-c2ccc3ncn(-c4ccc(OC(F)(F)F)cc4)c3c2)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.