Using CCOC(=O)C(C)(c1ccc2cc(O[C@H]3CC[C@H](C(C)(C)C)CC3)ccc2n1)[N+](=O)[O-] to produce CCOC(=O)C(C)(N)c1ccc2cc(O[C@H]3CC[C@H](C(C)(C)C)CC3)ccc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.