作者:Andreas B. zur Bonsen、Christopher J. Sumby、Jonathan H. George
DOI:10.1021/acs.orglett.3c02232
日期:2023.9.1
Hyperireflexolides A and B were synthesized in six steps via the dearomatization and fragmentation of a simple acylphloroglucinol starting material. The dearomatized acylphloroglucinol undergoes a sequence of oxidative radical cyclization, retro-Dieckmann fragmentation, stereodivergent intramolecular carbonyl-ene reactions, and final α-hydroxy-β-diketone rearrangements to give the target natural products
Hyperireflexolides A 和 B 通过简单的酰基间苯三酚起始材料的脱芳构化和断裂分六个步骤合成。脱芳构酰基间苯三酚经历一系列氧化自由基环化、逆迪克曼断裂、立体发散分子内羰基烯反应以及最终的α-羟基-β-二酮重排,得到目标天然产物。该序列基于一项生物合成提议,该提议声称 hyperireflexolides 是高度重排的多环聚异戊二烯酰基间苯三酚 (PPAP),该提议得到了 hyperireflexolides B 结构修改的支持。