Using [O-]c1c(Cl)c(Cl)c(Cl)c(Cl)c1Cl, C=C(F)C(=O)Cl to produce C=C(F)C(=O)Oc1c(Cl)c(Cl)c(Cl)c(Cl)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.