Chemoenzymatic Total Synthesis of Deoxy‐,
<i>epi</i>
‐, and Podophyllotoxin and a Biocatalytic Kinetic Resolution of Dibenzylbutyrolactones
作者:Mattia Lazzarotto、Lucas Hammerer、Michael Hetmann、Annika Borg、Luca Schmermund、Lorenz Steiner、Peter Hartmann、Ferdinand Belaj、Wolfgang Kroutil、Karl Gruber、Michael Fuchs
DOI:10.1002/anie.201900926
日期:2019.6.11
Podophyllotoxin is probably the most prominent representative of lignan natural products. Deoxy-, epi-, and podophyllotoxin, which are all precursors to frequently used chemotherapeutic agents, were prepared by a stereodivergent biotransformation and a biocatalytic kinetic resolution of the corresponding dibenzylbutyrolactones with the same 2-oxoglutarate-dependent dioxygenase. The reaction can be
鬼臼毒素可能是木脂素天然产物的最主要代表。脱氧,表位和鬼臼毒素都是经常使用的化学治疗剂的前体,它们是通过立体发散生物转化和相应的二苄基丁内酯与相同的2-氧戊二酸依赖性双加氧酶的生物催化动力学拆分制得的。该反应可以2 g规模进行,并且该酶允许修整初始的“天然”结构,并因此转化各种非天然衍生物。取决于取代模式,该酶通过CH活化或在易于闭环的苄基位置上的羟基化来执行氧化CC键形成。