Hypocholesterolemic activity of synthetic and natural tocotrienols.
作者:Bradley C. Pearce、Rex A. Parker、Michael E. Deason、Asaf A. Qureshi、J. J. Kim Wright
DOI:10.1021/jm00098a002
日期:1992.10
reductase by a process distinct from other known inhibitors of cholesterol biosynthesis. An efficient synthetic route to tocotrienols and their isolation from palm oil distillate using an improved procedure is presented. gamma-Tocotrienol exhibits a 30-fold greater activity toward cholesterol biosynthesis inhibition compared to alpha-tocotrienol in HepG2 cells in vitro. The synthetic (racemic) and natural
The first totalsynthesis of corallocin A is described herein. The Suzuki coupling reaction as a key step proceeded with high stereoselectivity and in good yield. Robust transformations, including Vilsmeier–Haack formylation and Wittig reaction, allowed for effective access to corallocin A.
本文描述了珊瑚素 A 的第一次全合成。Suzuki偶联反应作为关键步骤以高立体选择性和良好收率进行。强大的转化,包括 Vilsmeier-Haack 甲酰化和 Wittig 反应,允许有效获得珊瑚素 A。
Stereoselective Synthesis of the S- and Y-Ring Systems Of Maitotoxin.
The seven-membered S- and Y-ring systems of maitotoxin (1) were stereoselectively synthesized based on the rearrangement-ring expansion of the six-membered ethers having the mesylate group on the α-side chain.