Using COc1cc(C=O)c([N+](=O)[O-])cc1OC, CCCC[P+](CCCC)(CCCC)CC1OCCCO1 to produce COc1cc(/C=C/C=O)c([N+](=O)[O-])cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.