Using C[O-], Cc1ncn(-c2c(F)cc([N+](=O)[O-])cc2F)n1 to produce COc1cc([N+](=O)[O-])cc(F)c1-n1cnc(C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.