Efficient total syntheses of (±)-vincadifformine and (−)-tabersonine
作者:Satoshi Kobayashi、Ge Peng、Tohru Fukuyama
DOI:10.1016/s0040-4039(98)02667-7
日期:1999.2
Stereocontrolled biomimetictotalsyntheses of the title compounds are described. Our syntheses feature a highly efficient preparation of the key intermediate 11 using our novel indole synthesis methodology. A novel amine protecting protocol by means of 2,4-dinitrobenzenesulfonamides has been developed to ensure the formation of the elusive secodine (3) as well as secodine-type intermediate (4) under