作者:Makoto Inai、Takeshi Nishii、Ayako Tanaka、Hiroto Kaku、Mitsuyo Horikawa、Tetsuto Tsunoda
DOI:10.1002/ejoc.201100034
日期:2011.5
An asymmetric aldol reaction using Oppolzer's sultam has provided a practical and efficient synthetic route (15 steps, overall yield ca. 24 %) to 12 compounds of the Antimycin A family and deisovalerylblastmycin, which were obtained in pure form on a 60–300 mg scale. In the syntheses, the nine-membered dilactone ring was constructed successfully by lactonization of a 2-pyridinethiol ester bearing a
使用 Oppolzer 的 sultam 进行的不对称醛醇反应为 12 种抗霉素 A 家族和去异戊酰芽霉素的化合物提供了实用且有效的合成路线(15 步,总产率约 24%),这些化合物以 60-300 毫克的规模以纯形式获得. 在合成中,利用(CuOTf)2·PhH配合物,通过内酯化在8-OH上带有TIPS基团的2-吡啶硫醇酯,成功构建了九元双内酯环。