Convergent and Scalable Synthesis of the ABCDE-Ring Fragment of Caribbean Ciguatoxin C-CTX-1
作者:Makoto Sasaki、Miku Seida、Atsushi Umehara
DOI:10.1021/acs.joc.2c02414
日期:2023.1.6
Convergent and scalable synthesis of the ABCDE-ring fragment of Caribbean ciguatoxin C-CTX-1, the major causative toxin for ciguatera poisoning in the Caribbean Sea and the Northeast Atlantic areas, is described in detail. The key features of the synthesis include an iterative use of 2,2,6,6-tetramethyl piperidine 1-oxyl (TEMPO)/PhI(OAc)2-mediated oxidative lactonization and Suzuki–Miyaura coupling
详细描述了加勒比海和东北大西洋地区雪卡毒素中毒的主要致病毒素加勒比雪卡毒素 C-CTX-1 的 ABCDE 环片段的收敛和可扩展合成。合成的主要特征包括迭代使用 2,2,6,6-四甲基哌啶 1-氧基 (TEMPO)/PhI(OAc) 2介导的氧化内酯化和 Suzuki–Miyaura 偶联到 DE 环系统和收敛片段耦合,通过铃木-宫浦耦合策略形成 ABCDE 环骨架。