Using Nc1ncccc1CO, O=CC(Br)c1ccc([N+](=O)[O-])cc1 to produce O=[N+]([O-])c1ccc(-c2cn3cccc(CO)c3n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.