Using O=C(O)CCCc1cn(S(=O)(=O)c2cccc([N+](=O)[O-])c2)c2ccccc12 to produce Nc1cccc(S(=O)(=O)n2cc(CCCC(=O)O)c3ccccc32)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.