A formal synthesis of semiaquilegin A is achieved starting from readily available oridonin in 19 linear steps. The absolute configuration of the natural product has been established. A variety of useful analogues were prepared through this synthetic route.

中文翻译：

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形式的semiaquilegin A

从19种线性步骤中容易获得的oridonin开始，即可完成Semiaquilegin A的正式合成。天然产物的绝对构型已经确定。通过这种合成途径制备了多种有用的类似物。