Using O=P(Cl)(Cl)Cl, Oc1cc(-c2ccc(Cl)cc2)nc2ccc(F)cc12 to produce Fc1ccc2nc(-c3ccc(Cl)cc3)cc(Cl)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.