Using c1ccc(CCC[P+](c2ccccc2)(c2ccccc2)c2ccccc2)cc1, COC(=O)c1ccc(C=O)cc1 to produce COC(=O)c1ccc(C=CCCc2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.