Using COC(=O)c1ccc(C[P+](c2ccccc2)(c2ccccc2)c2ccccc2)c(Cl)c1, COC(=O)c1ccc(C=O)cc1 to produce COC(=O)c1ccc(/C=C\c2ccc(C(=O)OC)cc2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.