Using [NH4+], CC(C)(C)OC(=O)N1CC2(CC2)CC1C(=O)NCC(=O)c1ccc(Br)cc1 to produce CC(C)(C)OC(=O)N1CC2(CC2)CC1c1ncc(-c2ccc(Br)cc2)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.