Using BrC[P+](c1ccccc1)(c1ccccc1)c1ccccc1, O=Cc1c(O)c(Br)cc(F)c1Cl to produce Fc1cc(Br)c2occc2c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.