Using C[O-], Cn1nc(-c2ccc(Cl)c(CBr)c2)c(Cl)c1OC(F)F to produce COCc1cc(-c2nn(C)c(OC(F)F)c2Cl)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.