Synthesis of 3-<i>epi</i>-Hypatulin B Featuring a Late-Stage Photo-Oxidation in Flow
作者:Stefan Leisering、Sebastian Ponath、Kamar Shakeri、Alexandros Mavroskoufis、Merlin Kleoff、Patrick Voßnacker、Simon Steinhauer、Manuela Weber、Mathias Christmann
DOI:10.1021/acs.orglett.2c00689
日期:2022.6.24
A synthesis of 3-epi-hypatulin B, a highly oxygenated and densely functionalized bicyclic scaffold, is reported. The carbon skeleton was prepared by functionalization of a cyclopentanone and an intramolecular Mukaiyama aldol reaction. Highlights include a late-stage photo-oxidation of a methoxyallene to provide an ester group. The problems encountered in the batch process were solved by translation
报道了 3-表观-hypatulin B的合成,这是一种高氧且密集功能化的双环支架。碳骨架是通过环戊酮的官能化和分子内Mukaiyama羟醛反应制备的。亮点包括甲氧基丙二烯的后期光氧化以提供酯基团。通过将批处理过程中遇到的问题转化为流协议来解决。我们的合成凸显了流动化学的价值,以实现天然产物合成中具有挑战性的后期转化。