Using N#CBr, NNc1nccc2nc(-c3ccc(C4OCCO4)cc3)c(-c3ccccc3)cc12 to produce Nc1nnc2c3cc(-c4ccccc4)c(-c4ccc(C5OCCO5)cc4)nc3ccn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.