Total Syntheses of Aflavazole and 14-Hydroxyaflavinine
作者:Hailong Li、Qifeng Chen、Zhaohong Lu、Ang Li
DOI:10.1021/jacs.6b10880
日期:2016.12.7
The first totalsyntheses of aflavazole (6) and 14-hydroxyaflavinine (8), two sterically congested indole diterpenoids, were accomplished. AlI3-promoted alkyne Prins cyclization was exploited to construct their key structural motifs. An electrocyclization-aromatization sequence assembled the pentasubstituted arene of 6, and a Stille-Migita coupling furnished the tetrasubstituted olefin of 8. The benzylic