Stereocontrolled synthesis of dihydroxycyclopentane derivative: enantioselective synthesis of (+)-brefeldin A
作者:Hiroaki Miyaoka、Masahiro Kajiwara
DOI:10.1039/c39940000483
日期:——
A novel enantioselective synthesis of (+)-brefeldin A was achieved via stereocontrolled one-pot synthesis of a dihydroxycyclopentane derivative from allyl phenyl sulfone and chiral diepoxide.
通过烯丙基苯砜和手性二环氧化物立体控制一锅合成二羟基环戊烷衍生物,实现了 (+)-brefeldin A 的新型对映选择性合成。
Enantioselective Formal Synthesis of Brefeldin A and Analogues via Anionic Cyclization of an Alkenyl Epoxide
作者:Günter Helmchen、Tina Hübscher
DOI:10.1055/s-2006-941575
日期:2006.6
Cyclopentene derivatives suitable as intermediates for syntheses of brefeldin A and analogues 6,7-dehydrobrefeldin C and norbrefeldin A were prepared by epoxynitrile cyclization of alkenyl epoxides.
通过烯基环氧化物的环氧腈环化制备了适合作为合成布雷菲德菌素 A 和类似物 6,7-脱氢布雷菲德菌素 C 和降布雷菲德菌素 A 的中间体的环戊烯衍生物。
One-pot synthesis of dihydroxycyclopentanes from allylsulfones and chiral diepoxides.
作者:Hiroaki MIYAOKA、Masahiro KAJIWARA
DOI:10.1248/cpb.40.1659
日期:——
Allylphenylsulfonyl lithium, generated from allyl phenyl sulfone and nBuLi, reacts with chiral diepoxides to give dihydroxycyclopentane derivatives in good yields. The synthesis of the aldehyde 2, which is a key intermediate for brefeldin A, was achieved using this reaction.