Using CCCCCCN1C(=O)C2C(C1=O)C2(CCC)c1cccc([N+](=O)[O-])c1 to produce CCCCCCN1CC2C(C1)C2(CCC)c1cccc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.