Asymmetric Synthesis of Key Synthetic Intermediates of Aspidosperma and Hunteria Type Indole Alkaloids
摘要:
Chiral synthon (6), prepared from alpha,beta-epoxy ketone (4) via 1,2 acyl migration reaction as a key step, was converted to lactones (7) and (8), the key intermediates for Aspidosperma and Hunteria type indole alkaloids.
Asymmetric Synthesis of Key Synthetic Intermediates of Aspidosperma and Hunteria Type Indole Alkaloids
摘要:
Chiral synthon (6), prepared from alpha,beta-epoxy ketone (4) via 1,2 acyl migration reaction as a key step, was converted to lactones (7) and (8), the key intermediates for Aspidosperma and Hunteria type indole alkaloids.
Asymmetric synthesis of the pentacyclic ring system of Aspidosperma alkaloids
作者:Kunisuke Okada、Kazumasa Murakami、Hideo Tanino
DOI:10.1016/s0040-4020(97)00992-7
日期:1997.10
The asymmetric synthesis of pentacyclic compound 13, a known intermediate in the synthesis of l-acetylaspidospermidine, was conducted via the condensation of 2-hydroxytryptamine with chiral C9 lactone 9, readily available from triol 4.