Using c1ccc([P+](Cc2n[nH]c3ccccc23)(c2ccccc2)c2ccccc2)cc1, O=Cc1ccccc1[N+](=O)[O-] to produce O=[N+]([O-])c1ccccc1/C=C/c1n[nH]c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.