Using [NH4+], CC(C)(C)OC(=O)N1CCCn2c1nc1c[n+]([O-])c3cc(Br)ccc3c12 to produce CC(C)(C)OC(=O)N1CCCn2c1nc1c(N)nc3cc(Br)ccc3c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.