Using CC(C)(C)OC(=O)N1CCN(C[C@@](C)(O)Cn2cc([N+](=O)[O-])nc2Cl)CC1 to produce CC(C)(C)OC(=O)N1CCN(C[C@]2(C)Cn3cc([N+](=O)[O-])nc3O2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.