-
Novel Entry into 5-Decarboxydibenzofurans via Smiles Rearrangement of the Lichen Para-Depside, Erythrin
作者:Vinitha M. Thadhani、Muhammad Iqbal Choudhary、Raymond J. Andersen、Veranja Karunaratne
DOI:10.3184/030823410x12677394014276
日期:2010.3
Erythrin, isolated in 7.3% yield from the lichen Roccella montagnei, was converted via a Smiles rearrangement to a series of diphenyl ethers. Those with a free carboxylic acid at C-1 underwent a novel decarboxylative oxidative cyclisation in the presence of Pd(OAc)2 to produce 5-decarboxydibenzofurans. All compounds were assayed for their antioxidant and β-glucuronidase enzyme inhibitory activity.
从地衣 Roccella montagnei 中以 7.3% 的产率分离出的红蛋白通过 Smiles 重排转化为一系列二苯醚。那些在 C-1 处具有游离羧酸的化合物在 Pd(OAc)2 存在下经历了一种新型的脱羧氧化环化反应,生成 5-脱羧基二苯并呋喃。测定了所有化合物的抗氧化和β-葡萄糖醛酸酶抑制活性。
-
Jakupovic, Jasmin; Huneck, Siegfried, Zeitschrift fur Naturforschung, B: Chemical Sciences, 1989, vol. 44, # 9, p. 1117 - 1123
作者:Jakupovic, Jasmin、Huneck, Siegfried
DOI:——
日期:——
-
HUNECK, SIEGFRIED;JAKUPOVIC, JASMIN;FOLLMANN, GERHARD, Z. NATURFORSCH. B, 46,(1991) N, C. 969-970
作者:HUNECK, SIEGFRIED、JAKUPOVIC, JASMIN、FOLLMANN, GERHARD
DOI:——
日期:——
-
Huneck, Siegfried; Elix, John A.; Naidu, Rajina, Australian Journal of Chemistry, 1993, vol. 46, # 3, p. 407 - 410
作者:Huneck, Siegfried、Elix, John A.、Naidu, Rajina、Follmann, Gerhard
DOI:——
日期:——
-
Huneck, Siegfried; Jakupovic, Jasmin; Follmann, Gerhard, Zeitschrift fur Naturforschung, B: Chemical Sciences, 1991, vol. 46, # 7, p. 969 - 970
作者:Huneck, Siegfried、Jakupovic, Jasmin、Follmann, Gerhard
DOI:——
日期:——