Using OB(O)c1ccncc1, O=C(Nc1ccnnc1)c1cc(Br)ccc1OCc1ccc(F)cc1 to produce O=C(Nc1ccnnc1)c1cc(-c2ccncc2)ccc1OCc1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.