Toward the Stereoselective Synthesis of Arthrobotrisin A: Fragment Synthesis and Coupling Studies
作者:Harshadas Meshram、Rayala Kumar、Nandigama Kumar
DOI:10.1055/s-0036-1588950
日期:——
stereocontrolled synthesis of arthrobotrisin A based on a Nozaki–Hiyama–Kishi (NHK) coupling strategy was developed. Highlights of the fragment synthesis include enzyme-catalyzed kinetic resolution, Negishi carbometalation–iodination, quinone formation through oxidation with hypervalent iodine, chiral oxazaborolidine-catalyzed asymmetric Diels–Alder reaction with cyclopentadiene, regio- and stereoselective epoxidation
开发了一种基于 Nozaki-Hiyama-Kishi (NHK) 偶联策略的立体控制合成 arthrobotrisin A 的路线。片段合成的亮点包括酶催化动力学拆分、Negishi 碳金属化-碘化、通过高价碘氧化形成醌、手性恶唑硼烷催化不对称 Diels-Alder 与环戊二烯反应、区域和立体选择性环氧化、Noyori 还原、逆 Diels- Alder 反应、非对映选择性 Luche 还原,最后是乙烯基碘片段的 Nozaki-Hiyama-Kishi (NHK) 偶联。