Stereoselective Synthesis of (-)-Pironetin by an Iterative Prins Cyclisation and Reductive Cleavage Strategy
作者:J. Yadav、Hissana Ather、N. Rao、M. Reddy、A. Prasad
DOI:10.1055/s-0029-1219810
日期:2010.5
A stereoselective synthesis of pironetin, a natural product which is highly immunosuppressive and shows remarkable plant growth regulatory and antitumoral activities, is described. The approach avails successfully the high stereoselection of Prins cyclisation. The route relies, in addition, on the reductive opening of cyclic ethers, olefin metathesis, and lithium acetylide displacement of tosylate
描述了一种立体选择性合成 pironetin,一种具有高度免疫抑制性并显示出显着的植物生长调节和抗肿瘤活性的天然产物。该方法成功地利用了 Prins 环化的高立体选择。此外,该路线依赖于环醚的还原开环、烯烃复分解和甲苯磺酸盐的乙炔锂置换。关键词 天然产物 - Prins 环化 - 立体选择性合成 - 还原裂解 - 烯烃复分解