Total Synthesis of the Microtubule Stabilizing Antitumor Agent Laulimalide and Some Nonnatural Analogues: The Power of Sharpless' Asymmetric Epoxidation
作者:Anjum Ahmed、E. Kate Hoegenauer、Valentin S. Enev、Martin Hanbauer、Hanspeter Kaehlig、Elisabeth Öhler、Johann Mulzer
DOI:10.1021/jo026743f
日期:2003.4.1
With (R,R)-tartrate the 16,17-epoxide laulimalide (1) is formed selectively, whereas (S,S)-tartrate generates the 21,22-epoxide 142. This demonstrates the high reagent control involved in the SAE process, which in this case is used to achieve high stereo- and regioselectivity. Laulimalide and some derivatives thereof have been tested with respect to antitumoractivity and compared to standard compounds