Using C[C@@H]1CN(C(=O)OC(C)(C)C)CCN1, O=C(O)[C@H]1CC[C@@H](Nc2cc(Cl)ncc2[N+](=O)[O-])CC1 to produce C[C@@H]1CN(C(=O)OC(C)(C)C)CCN1C(=O)[C@H]1CC[C@@H](Nc2cc(Cl)ncc2[N+](=O)[O-])CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.