Intramolecular Diels–Alder Cycloaddition Approach toward the <i>cis</i>-Fused Δ<sup>5,6</sup>-Hexahydroisoindol-1-one Core of Cytochalasins
作者:Jingjing Xu、Benguo Lin、Xiuqing Jiang、Zejun Jia、Jinlong Wu、Wei-Min Dai
DOI:10.1021/acs.orglett.8b04129
日期:2019.2.1
Synthesis of the cis-fused Δ5,6-hexahydroisoindol-1-one core of cytochalasins B2–B5, K, Z8, Z9, Z12–Z15, and Z17 has been established starting from an intramolecular Diels–Alder reaction of the amide-tethered (8E)-1,3,8-nonatriene. The trans-fused 5/6-bicyclic adduct was then subjected to highly stereoselective C9-β-hydroxylation and epimerization of the C7-α-OH group.
的合成的顺式-融合Δ 5,6- -hexahydroisoindol -1-酮细胞松弛素B的核心2 -B 5,K,Z 8,Z 9,Z 12 -Z 15,和Z 17已经建立从分子内狄尔斯开始–酰胺系的(8 E)-1,3,8-壬二烯的Al光反应。然后使反式融合的5 / 6-双环加合物经历高度立体选择性的C9-β-羟基化和C7-α-OH基的差向异构化。