Using CCCc1c(OCCCOc2cccc([N+](=O)[O-])c2)ccc(C(C)=O)c1OC to produce CCCc1c(OCCCOc2cccc(N)c2)ccc(C(C)=O)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.