Phytoecdysteroids from the rhizomes of Brainea insignis

  • Phytochemistry. 2010 Jun;71(8-9):975-81. doi: 10.1016/j.phytochem.2010.03.002.
Ping Wu  1 ,  Haihui Xie ,  Wenqin Tao ,  Shenyu Miao ,  Xiaoyi Wei
Affiliations
  • 1. Key laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Tianhe District, Guangzhou, China.
PMID: 20347104 DOI: 10.1016/j.phytochem.2010.03.002
Abstract

Phytoecdysteroid glucosides, brainesterosides A-E, were isolated from the rhizomes of Brainea insignis along with three known phytoecdysteroids, ponasteroside A, ponasterone A, and 20-hydroxyecdysone. Their structures were elucidated by spectroscopic and chemical means. A possible biogenetic pathway is postulated for these compounds. The chemosystematic significance of ponasterone A is discussed.

Products