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Planta Med 1995; 61(4): 375-377
DOI: 10.1055/s-2006-958109
Letters

© Georg Thieme Verlag Stuttgart · New York

Rearranged Taxoids from Taxus yunnanensis

Qin Yue, Qi-Cheng Fang, Xiao-Tian Liang, Cun-Heng He, Xiao-Lin Jing
  • Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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1994

1995

Publication Date:
04 January 2007 (online)

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Abstract

Two rearranged 2(3→20)abeotaxanes were isolated from the leaves and stems of Taxus yunnanensis, and designated as taxin B and 2-de-acetyltaxin B. The structure of taxin B with a unique 6/10/6 skeleton was deduced on the basis of 1H-NMR, 13C-NMR, 1H-1H COSY, DEPT, NOE, and mass spectra and confirmed by X-ray crystallographic analysis. The structure of 2-deacetyltaxin B is elucidated by analog.