Using OB(O)c1cccnc1, C[C@H](Nc1ncnc(N)c1C#N)c1nc2ccc(F)c(Br)c2n1C to produce C[C@H](Nc1ncnc(N)c1C#N)c1nc2ccc(F)c(-c3cccnc3)c2n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.