koshikalide, a 14-membered macrolide that contains three olefins, was achieved. The skipped diene in the cyclic system was efficiently constructed by very mild Stille coupling at low temperature. The absolute stereochemistry was established by comparison of the specific optical rotations of natural and synthesized koshikalide.
首次实现了全合成碱的合成,这是一种含有三种烯烃的14元大环内酯。通过在低温下进行非常温和的Stille偶联,可以有效地构建循环系统中跳过的二烯。通过比较天然和合成的koshikalide的特定旋光性,可以建立绝对立体
化学。