Using CC(C)(C)n1cc(C(=O)c2cncc(Br)c2)c2cncnc21, N to produce CC(C)(C)n1cc(C(=O)c2cncc(N)c2)c2cncnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.