A Total Synthesis of Tarchonanthuslactone Exploiting <i>N</i>-Pyrrole Carbinols as Efficient Stereocontrolling Elements
作者:Mark S. Scott、Chris A. Luckhurst、Darren J. Dixon
DOI:10.1021/ol052333c
日期:2005.12.1
[reaction: see text] A short stereoselective total synthesis of the polyketide natural product, tarchonanthuslactone, has been achieved. The key sequence involves the first reported catalytic enantioselective reduction of an N-acyl pyrrole and subsequent use of this stereocenter in a diastereoselective reductive cascade. This proceeded with unprecedentedly high stereocontrol and offered an elegant
[反应:见正文]已经完成了聚酮化合物天然产物tarchonanthuslactone的短时立体选择性全合成。关键序列涉及首次报道的N-酰基吡咯的催化对映选择性还原,以及随后在非对映选择性还原级联反应中使用该立体中心。这进行了前所未有的高立体控制,并提供了一种优雅的方法,可以一步生成最终目标中所需的同构立体化学。