Taxayuntin I, a new 11I (15→1)abeotaxane. was isolated from the leaves and stems ofTaxes yunnanensis. Its structure was elucidated on the basis of spectroscopic data.
Four new taxane diterpenoids were isolated from the bark of Taxus yunnanensis.Their structures were elucidated as the new skeleton with 5/7/6/4 membered rings by spectral analysis and 2D NMR shift correlation experime...Four new taxane diterpenoids were isolated from the bark of Taxus yunnanensis.Their structures were elucidated as the new skeleton with 5/7/6/4 membered rings by spectral analysis and 2D NMR shift correlation experiments.展开更多
A new skeleton taxane diterpene,taxayuntin,was isolated from the leaves and stems of Taxus yunnanensis.Its structure was determined by spectroscopic methods(MS,~1H NMR,^(13)C NMR, ~1H-~1H COSY,~1H-^(13)C COSY and ^(13...A new skeleton taxane diterpene,taxayuntin,was isolated from the leaves and stems of Taxus yunnanensis.Its structure was determined by spectroscopic methods(MS,~1H NMR,^(13)C NMR, ~1H-~1H COSY,~1H-^(13)C COSY and ^(13)C-~1H COLOC)and X-ray diffraction.展开更多
文摘Taxayuntin I, a new 11I (15→1)abeotaxane. was isolated from the leaves and stems ofTaxes yunnanensis. Its structure was elucidated on the basis of spectroscopic data.
文摘Four new taxane diterpenoids were isolated from the bark of Taxus yunnanensis.Their structures were elucidated as the new skeleton with 5/7/6/4 membered rings by spectral analysis and 2D NMR shift correlation experiments.
文摘A new skeleton taxane diterpene,taxayuntin,was isolated from the leaves and stems of Taxus yunnanensis.Its structure was determined by spectroscopic methods(MS,~1H NMR,^(13)C NMR, ~1H-~1H COSY,~1H-^(13)C COSY and ^(13)C-~1H COLOC)and X-ray diffraction.
