作者:Qingshou Chen、Haibing Deng、Jingrui Zhao、Yong Lu、Mingyuan He、Hongbin Zhai
DOI:10.1016/j.tet.2005.06.098
日期:2005.8
We have presented two facile four-step syntheses of (±)-tanikolide from ethyl 2-oxocyclopentanecarboxylate. The overall chemical yields of the two sequences reached as high as 76 and 85%, respectively. The first strategy involved alkylation, Baeyer–Villiger reaction, saponification, and reduction/lactonization. The second approach for synthesizing tanikolide took advantage of the same intermediate
我们提出了由2-氧代环戊烷甲酸乙酯合成(±)-tanikolide的两个简便的四步合成方法。这两个序列的总化学产率分别高达76%和85%。第一个策略涉及烷基化,Baeyer-Villiger反应,皂化和还原/内酯化。合成鞣酸内酯的第二种方法是利用相同的中间体,即烷基化的酮酸酯2,该中间体通过脱氧羰基化,羟甲基化和Baeyer-Villiger反应这三个步骤转化为目标分子。我们的策略具有优势,因为它们具有高收率,并且适合制备1克或更大数量的1。