Using O=CC(C=O)[N+](=O)[O-], Nc1cc(COCc2ccccc2)n[nH]1 to produce O=[N+]([O-])c1cnc2[nH]nc(COCc3ccccc3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.