A collective synthesis of glycosylated monoterpenoid indole alkaloids is reported. A highly diastereoselective Pictet–Spengler reaction with α‐cyanotryptamine and secologanin tetraacetate as substrates, followed by a reductive decyanation reaction, was developed for the synthesis of (−)‐strictosidine, which is an important intermediate in biosynthesis. This two‐step chemical method was established
据报道糖基化的单
萜类吲哚生物碱的集体合成。开发了一种高度非对映选择性的Pictet-Spengler反应,以α-
氰基
色胺和secologanin
四乙酸酯为底物,然后进行还原性脱
氰反应,用于合成(-)-strictosidine,这是
生物合成的重要中间体。建立了此两步
化学方法,替代了
生物合成采用的严格的
芥子碱合酶。此外,在进行
化学和计算研究之后,提出了在我们新发现的Pictet-Spengler反应中诱导非对映选择性的过渡态。仅用10个步骤就完成了(-)-strictosidine的首次对映选择性全合成,