Using COCOc1cccc2c1C[C@@H](c1ccccc1)O[C@H]2C[N+](=O)[O-] to produce O=[N+]([O-])C[C@@H]1O[C@H](c2ccccc2)Cc2c(O)cccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.