Synthesis of curacin A, an antimitotic cyclopropane-thiazoline from the marine cyanobacterium Lyngbya majuscula
作者:Jing-Yu Lai、Jurong Yu、Belew Mekonnen、J.R. Falck
DOI:10.1016/0040-4039(96)01616-4
日期:1996.9
Charette asymmetric cyclopropanation, chiral thiazoline synthesis by thioamide cyclization under modified Mitsunobu conditions, Ti(iPrO)4/bi-naphthol catalyzed allylstannane addition, and an exceptionally mild two-carbon homologation via dehydrative alkylation with phenylsulfonylacetonitrile/Ph3P/ADDP convened in an efficient, stereocontrolled route to the title bioactive heterocycle.
Charette不对称环丙烷化,在改良的Mitsunobu条件下通过硫酰胺环化反应合成手性噻唑啉,Ti(i PrO)4 /双萘酚催化烯丙基锡烷的加成,以及通过苯烷基磺酰乙腈/ Ph 3 P / ADDP的脱水烷基化产生的异常温和的二碳同系物标题生物活性杂环的高效,立体控制路线。