Using O=C(Nc1ccncc1)c1cccn(C2CCc3c2cccc3[N+](=O)[O-])c1=O to produce Nc1cccc2c1CCC2n1cccc(C(=O)Nc2ccncc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.