作者:Hiroyoshi Takamura、Takayuki Fujiwara、Yohei Kawakubo、Isao Kadota、Daisuke Uemura
DOI:10.1002/chem.201503880
日期:2016.2.5
Stereoselective and streamlined synthesis of the proposed C79–C104 fragment 2 of symbiodinolide (1), a polyol marine natural product with a molecular weight of 2860, was achieved. In the synthetic route, the proposed C79–C104 fragment 2 was synthesized by utilizing a Julia–Kocienski olefination and subsequent Sharpless asymmetric dihydroxylation as key transformations in a convergent manner. Detailed comparison
拟定合成的共生双癸内酯(1)的C79–C104片段2(一种分子量为2860的多元醇海洋天然产物)的立体选择性和流线型合成。在合成途径中,拟议的C79-C104片段2是通过利用Julia-Kocienski烯烃化反应和随后的Sharpless不对称二羟基化反应以聚合方式合成为关键转化而合成的。天然产物和合成的C79–C104片段2之间的13 C NMR化学位移的详细比较显示,共生双杀菌素(1)的C91–C99碳链部分的立体结构应重新研究。