Using CC(=Nc1nc(Br)cnc1N1CCN(C(=O)OC(C)(C)C)CC1)N(C)C, NO to produce CC(=Nc1nc(Br)cnc1N1CCN(C(=O)OC(C)(C)C)CC1)NO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.