Using COC(=O)/C=C/c1ccc(C2CCCN2CCc2c(C(C)(C)C)[nH]c3cc([N+](=O)[O-])ccc23)cc1 to produce COC(=O)/C=C/c1ccc(C2CCCN2CCc2c(C(C)(C)C)[nH]c3cc(N)ccc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.