Schisanartane nortriterpenoids with diverse post-modifications from Schisandra propinqua

  • J Nat Prod. 2010 Aug 27;73(8):1337-43. doi: 10.1021/np100144d.
Chun Lei  1 ,  Sheng-Xiong Huang ,  Wei-Lie Xiao ,  Xiao-Nian Li ,  Jian-Xin Pu ,  Han-Dong Sun
Affiliations
  • 1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, People's Republic of China.
PMID: 20681569 DOI: 10.1021/np100144d
Abstract

Twenty-one highly oxygenated nortriterpenoids with a schisanartane skeleton were isolated from the stems of Schisandra propinqua var. propinqua. These nortriterpenoids featured a polycyclic framework composed of 7/8/5 consecutive carbocycles, which were organized by similar 5/5/7/5/7/5 rings A-F and varied oxygen-containing rings G and H. A biosynthetic classification of these compounds is proposed on the basis of their diverse post-modifications.