Using O=C(CCC(C(=O)OCc1ccccc1)N1Cc2c(cccc2[N+](=O)[O-])C1=O)OCc1ccccc1 to produce Nc1cccc2c1CN(C(CCC(=O)O)C(=O)O)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.