Using NCCNc1nsc2ccc([N+](=O)[O-])cc12, O=C(Cl)c1ccccn1 to produce O=C(NCCNc1nsc2ccc([N+](=O)[O-])cc12)c1ccccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.