Using COc1ccc(C=O)c(C(=O)c2ccc([N+](=O)[O-])cc2)c1, COC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce COC=Cc1ccc(OC)cc1C(=O)c1ccc([N+](=O)[O-])cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.