TAXAYUNTIN A,B,C AND D----FOUR NEW TETRACYCLIC TAXANES FROM TAXUS YUNNANENSIS
TAXAYUNTIN A,B,C AND D----FOUR NEW TETRACYCLIC TAXANES FROM TAXUS YUNNANENSIS
摘要
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.
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.
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