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Three new sesquiterpenoids, named yunnanolides J-K and yunnanol A (1-3), together with ten known sesquiterpenoids (4-13), have been isolated from the dried whole plants of Ainsliaea yunnanensis Franch. The chemical structures of compounds 1-3 were elucidated by NMR and HRESIMS analysis. All the compounds were tested for in vitro cytotoxicity against three human tumor cell lines (95D, MDA-MB-231, and...
Three new cucurbitane-type triterpenoids, including (23E)-cucurbita-3β-hydroxy-25-methoxy-5,23-diene (1), (23E)-cucurbita-3β-hydroxy-5,23,25-triene (2), and cucurbiata-3β-hydroxy-5,25-dien-24-one (3), have been isolated with four known triterpenoids (4-7) from the dried whole plants of Ainsliaea henryi. The chemical structures of compounds 1–3 were elucidated by 1D NMR (1H, 13C and DEPT), 2D NMR (COSY,...
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