Using COCCBr, O=[N+]([O-])c1cc2[nH]ccc2cc1C(F)(F)F to produce COCCn1ccc2cc(C(F)(F)F)c([N+](=O)[O-])cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.