Using COc1cc([N+](=O)[O-])c(C(=O)CCc2c(Cl)cncc2Cl)cc1OC1CCCC1 to produce COc1cc(N)c(C(=O)CCc2c(Cl)cncc2Cl)cc1OC1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.