Using O=C(O)c1cc(-c2ccccc2)ccc1N/C=C/[N+](=O)[O-] to produce O=[N+]([O-])c1cnc2ccc(-c3ccccc3)cc2c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.