ent‐kaurane diterpene, has been accomplished. Key steps of the current strategy involve an early‐stage semipinacol rearrangement reaction for the construction of the C10 quaternary stereocenter, a rhodium‐catalyzed intramolecular O−H insertion reaction, and a sequential Wessely oxidative dearomatization/intramolecular Diels–Alder reaction to forge the pentacyclic framework of maoecrystal V.
( - ) -的不对称全合成maoecrystal V,一种新型的细胞毒性五环ENT -kaurane双萜,已经完成。当前策略的关键步骤包括用于构建C10四元立体中心的早期半松果
酚重排反应,
铑催化的分子内O-H插入反应以及顺序的Wessely氧化脱芳香化/分子内Diels-Alder反应以形成五环茂晶V的框架