A concise and efficient total synthesis of sanggenol F (1) in racemic form has been completed via a sequence of 15 steps with an overall yield of 3.1%, starting from commercially available 2,4,6-trihydroxyacetophenone. Meanwhile, a semisynthesis of sanggenol F racemate has also been achieved in 11.1% overall yield via 7 steps with naturally-occurring morin (2) as the starting material. One step and a stepwise approach were employed to construct the two prenyl side chains at 2- and 6-positions by Claisen rearrangement reaction.

中文翻译：

---

（±）-桑戈尼酚F的全合成

从市售的2,4,6-三羟基苯乙酮开始，经过15个步骤的序列，已完成了外消旋形式的Sanggenol F（1）的简明有效的总合成，总收率为3.1％。同时，以天然存在的香豆素（2）为起始原料，通过7个步骤，桑格诺尔F外消旋体的半合成产率也达到了11.1％。通过克莱森重排反应，采用一步和逐步的方法在2-和6-位上构建两个异戊二烯基侧链。