Stereoselective Total Synthesis of (+)-Oploxyne A, (−)-Oploxyne B, and Their C-10 Epimers and Structure Revision of Natural Oploxyne B
作者:J. S. Yadav、Kumaraswamy Boyapelly、Sathish Reddy Alugubelli、Srihari Pabbaraja、Janakiram R Vangala、Shasi V Kalivendi
DOI:10.1021/jo102445h
日期:2011.4.15
The first total synthesis of recently isolated diacetylene alcohols oploxyne A, oploxyne B, and their C-10 epimers was accomplished. The structure of natural oploxyne B has been revised. The key steps involved are base-induced double elimination of a carbohydrate-derived β-alkoxy chloride to generate the chiral acetylenic alcohol and Cadiot−Chodkiewicz cross-coupling reaction. The target compounds
完成了最近分离的二乙炔醇oploxyne A,oploxyne B及其C-10差向异构体的第一个全合成。天然环氧烷B的结构已被修改。涉及的关键步骤是碱诱导的碳水化合物衍生的β-烷氧基氯化物的双消除,从而生成手性炔醇和Cadiot-Chodkiewicz交叉偶联反应。目标化合物显示出针对神经母细胞瘤和前列腺癌细胞系的有效细胞毒性。