Using O=[N+]([O-])O, O=C1c2ccccc2C(=O)c2ccccc21 to produce O=C1c2ccccc2C(=O)c2c1cccc2[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.