Abstract
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 language | English |
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Pages (from-to) | 1401-1405 |
Number of pages | 5 |
Journal | Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences |
Volume | 65 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2010 |
Externally published | Yes |
Keywords
- Ponasterone 20,22-acetonide
- Ponasterone 20,22-p-hydroxybenzylidene acetal
- Structure elucidation
- Taxaceae
- Taxus canadensis
ASJC Scopus subject areas
- Chemistry(all)