Two new phytoecdysteroids from the needles of Taxus canadensis

Yu Fang, Zhi Yu Ni, Teiko Yamada, Yu Fang Wang, Man Li Zhang, Mei Dong, Bin Cong, Françoise Sauriol, Chang Hong Huo, Qing Wen Shi, Hiromasa Kiyota

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Two new phytoecdysteroids with a 20,22-acetal group were identified for the first time from the needles of the Canadian yew, Taxus canadensis. Their structures were characterized as ponasterone A 20,22-p-hydroxybenzylidene acetal (1) and ponasterone A 20,22-acetonide (2) on the basis of 1D, 2D NMR evidence and high-resolution FABMS analysis.

Original languageEnglish
Pages (from-to)1401-1405
Number of pages5
JournalZeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
Issue number11
Publication statusPublished - 2010
Externally publishedYes


  • Ponasterone 20,22-acetonide
  • Ponasterone 20,22-p-hydroxybenzylidene acetal
  • Structure elucidation
  • Taxaceae
  • Taxus canadensis

ASJC Scopus subject areas

  • Chemistry(all)


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