Using CCn1cc(-c2ccnc3[nH]ccc23)c(-c2ccc([N+](=O)[O-])cc2)n1 to produce CCn1cc(-c2ccnc3[nH]ccc23)c(-c2ccc(N)cc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.