Using COc1ccc(CN)cc1, O=Cc1cc(Br)ccc1[N+](=O)[O-] to produce COc1ccc(CNCc2cc(Br)ccc2[N+](=O)[O-])cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.