Regio- and Stereospecific Synthesis of Cholesterol Derivatives and Their Hormonal Activity inCaenorhabditis elegans
作者:Arndt W. Schmidt、Thomas Doert、Sigrid Goutal、Margit Gruner、Fanny Mende、Teymuras V. Kurzchalia、Hans-Joachim Knölker
DOI:10.1002/ejoc.200600394
日期:2006.8
identified. Herein, we describe the regio- and stereospecificsynthesis of a number of cholesterol derivatives. The lithium–ammonia reduction of 4-cholesten-3-one was utilized to develop a general method for the introduction of diverse functional groups at C-4α of 5α-cholestan-3β-ol. Stereoselective functionalization at C-7 was achieved starting from 7-ketocholesterol derivatives. 6-Keto-5α-cholestan-3β-ol