Natural Product Research 2019-Feb
Two new eremophilane Sesquiterpenoides from Ligularia dictyoneura.
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Two new eremophilane sesquiterpenoides, 6α,9α-dihydroxyeremophilenolide (1), and 1β,10β-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.
