Using ClP(Cl)(Cl)(Cl)Cl, CONC(=O)c1ccccc1OCc1ccc(Cl)cc1Cl to produce CON=C(Cl)c1ccccc1OCc1ccc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.