作者:Hiroyoshi Takamura、Takashi Abe、Naoki Nishiuma、Rie Fujiwara、Takahiko Tsukeshiba、Isao Kadota
DOI:10.1016/j.tet.2012.01.071
日期:2012.3
generation stereocontrolled syntheses of the LM ring fragment were achieved via spiroacetalization as a key step, respectively. The polyether framework of the HIJKLM ring fragment was constructed in a convergent manner by using intramolecular allylation, ring-closing metathesis, and stereoselective hydrogenation to form the 36-methyl substituent as the key transformations.
研究了西瓜毒素CTX3C右侧片段的会聚合成。LM环片段的第一代和第二代立体控制合成分别通过螺缩醛化作为关键步骤实现。HIJKLM环片段的聚醚框架通过分子内烯丙基化,闭环复分解和立体选择性氢化以形成36-甲基取代基作为关键转化,以聚合方式构建。