Using COc1ccc(CN)c(OC)c1, FC(F)(c1ccc(Cl)nn1)c1nnc2ccc(Br)cn12 to produce COc1ccc(CNc2ccc(C(F)(F)c3nnc4ccc(Br)cn34)nn2)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.