Stereoselective Preparation
of C1-C10 and C11-O14 Fragments of Narbonolide:
Exploiting the Versatility of Thiazolidinethione Chiral Auxiliary
作者:Parthasarathi Das、C. Narasimhulu
DOI:10.1055/s-0028-1083321
日期:——
An efficient stereoselective synthesis of the C1-C10 and C11-O14 fragments of narbonolide, have been accomplished by using a thiazolidinonethione as chiral auxiliary. The stereocenters at C2, C3, C4, C5, C8, and C9 in C1-C10 fragment and C12 and C13 in C11-C14 fragment were generated via asymmetric acyl-thiazolidinethione aldol reactions whereas the stereocenter at C6 was installed by means of Myers
通过使用噻唑烷二酮硫酮作为手性助剂,可以实现narbonolide的C1-C10和C11-O14片段的高效立体选择性合成。C1-C10片段中C2,C3,C4,C5,C8和C9以及C11-C14片段中C12和C13的立体中心是通过不对称酰基噻唑烷硫酮醛醇缩合反应生成的,而C6的立体中心是通过Myers烷基化法安装的。 酰基噻唑烷硫酮-Aldol反应-Crimmins方案-Myers烷基化-Tebbe反应 DRL出版物670。