Using CC(C)(C)OC(=O)N[C@@H]1CN(c2c([N+](=O)[O-])cnc3c2CCC3)C[C@H](C2CC2)[C@H]1O, O=C(OO)c1cccc(Cl)c1 to produce CC(C)(C)OC(=O)N[C@@H]1CN(c2c([N+](=O)[O-])c[n+]([O-])c3c2CCC3)C[C@H](C2CC2)[C@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.