Using CCCN1CN(C)C(=N[N+](=O)[O-])N(Cc2ccc(Cl)nc2)C1 to produce CNC(=N[N+](=O)[O-])NCc1ccc(Cl)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.