Using Cc1nc(O[C@H]2CC[C@H](C(C)C)CC2)c(Br)cc1[N+](=O)[O-] to produce Cc1nc(O[C@H]2CC[C@H](C(C)C)CC2)c(Br)cc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.