Using CCCc1c(C(=O)NC2CC2)nnn1-c1ccc([N+](=O)[O-])cc1 to produce CCCc1c(C(=O)NC2CC2)nnn1-c1ccc(N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.