4.4 Article

Two new eremophilane Sesquiterpenoides from Ligularia dictyoneura

Journal

NATURAL PRODUCT RESEARCH
Volume 34, Issue 9, Pages 1297-1302

Publisher

TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2018.1556652

Keywords

Ligularia dictyoneura; compositae; eremophilane

Funding

  1. Key Laboratory in Yunnan, China [2016-5]
  2. Science and Technology Innovation Team of Higher Education in Yunnan, China [2014-6]

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Two new eremophilane sesquiterpenoides, 6 alpha,9 alpha-dihydroxyeremophilenolide (1), and 1 beta,10 beta-dihydroxyeremophilenolide (2), along with ten known eremophilane sesquiterpenoides (3-12) were isolated from the aerial parts of Ligularia dictyoneura (Franch.) Hand.-Mazz. Their structures were elucidated by means of extensive spectroscopic analysis. Compounds 3-6 were assessed for their cytotoxicity against five human cancer cell lines (HL-60, SMMC-7721, A-549, MCF-7 and SW-480), and the result showed that they had no activity.

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