Using CN(C(=O)NCCCl)C1O[C@H](CO)[C@@H](O)[C@H]1O, O=N[O-] to produce CN(C(=O)N(CCCl)N=O)C1O[C@H](CO)[C@@H](O)[C@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.