Stereoselective synthesis of 5-O-carbamoylpolyoxamic acid by [2,3]-Wittig-Still rearrangement
作者:Arun K Ghosh、Yong Wang
DOI:10.1016/s0040-4020(99)00838-8
日期:1999.11
Stereoselective [2,3]-Wittig rearrangement of E- and Z-allylic stannyl ethers derived from an isopropylidene L-threitol derivative has been investigated. The E-isomer exhibited best diastereoselectivity and the resulting rearrangement product has been converted to protected polyoxamic acid, an amino acid component of many bioactive polyoxins.
研究了源自异丙叉 L-苏糖醇衍生物的E-和Z-烯丙基甲锡烷基醚的立体选择性 [2,3]-Wittig 重排。E-异构体表现出最佳的非对映选择性,所得重排产物已转化为受保护的聚肟酸,这是许多生物活性多氧霉素的氨基酸成分。