Using O=C1CCC(N2Cc3c(cccc3[N+](=O)[O-])C2=O)C(=O)N1 to produce Nc1cccc2c1CN(C1CCC(=O)NC1=O)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.