作者:Tatsunobu Sumiya、Ken Ishigami、Hidenori Watanabe
DOI:10.1002/anie.201002505
日期:——
I want to ride my tricycle: Urechitol A was synthesized as a racemate by using a [4+3] cycloaddition reaction and methanol assisted intramolecular epoxide opening as the key steps for the efficient construction of the core tricyclic framework. The overall yield was 2.3 % over 12 steps. Bn=benzyl, TES=triethylsilyl.
我想骑三轮车:Urechitol A是通过[4 + 3]环加成反应合成的外消旋体,甲醇辅助的分子内环氧化物开口是有效构建核心三环骨架的关键步骤。在12个步骤中,总产率为2.3%。Bn =苄基,TES =三乙基甲硅烷基。