Using COC(=O)c1ccc([N+](=O)[O-])c(O)c1, FC(F)I to produce COC(=O)c1ccc([N+](=O)[O-])c(OC(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.