Using COC(=O)CC1CCC(=O)CC1, CCC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce CCC=C1CCC(CC(=O)OC)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.