Using O=C1NC(=O)c2ccccc21, O=[N+]([O-])c1ccc(F)cc1CBr to produce O=C1c2ccccc2C(=O)N1Cc1cc(F)ccc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.