Using N#CBr, NNc1ccc(-c2c(-c3ccc(F)cc3F)nc3occn23)nn1 to produce Nc1nnc2ccc(-c3c(-c4ccc(F)cc4F)nc4occn34)nn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.