4.8 Article

Schinalactone A, a New Cytotoxic Triterpenoid from Schisandra sphenanthera

Journal

ORGANIC LETTERS
Volume 12, Issue 6, Pages 1208-1211

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol902974j

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Funding

  1. NSFC [30830115, 20802082]
  2. NSF of Yunan province [2008GA031]
  3. 973 Program [2009CB522300, 2009CB940900]
  4. Yong Academic and Technical Leader Rising Foundation of Yunnan Province [2006PY01-47]
  5. CAS

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A new cytotoxic triterpenold, schinalactone A (1), together with two new biogenetically related compounds, schinalactones B (2) and C (3), has been isolated from the roots and stems of Schisandra sphenanthera. Their structures were elucidated on the basis of extensive spectroscopic analysis. Compounds 1 and 2 showed significant cytotoxicity against PANC-1 cell lines with IC50 values of 5.9 and 4.1 mu M, respectively, A plausible biosynthetic pathway of 1 was also postulated.

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