Using CC1=Nc2ccc(CC(=O)O)cc2C1(C)C, O=[N+]([O-])c1cc(CCl)cc([N+](=O)[O-])c1 to produce O=C(O)Cc1ccc2c(c1)CC=[N+]2Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.