Using COC(=O)c1c(NS(=O)(=O)c2ccccc2[N+](=O)[O-])ccc2c1CCCC2 to produce COC(=O)c1c(NS(=O)(=O)c2ccccc2N)ccc2c1CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.