Lathyrane-type diterpenoids from the seeds of Euphorbia lathyris
2014
Lu, Jin | Li, Guoyu | Huang, Jian | Zhang, Cui | Zhang, Lan | Zhang, Ke | Li, Pingya | Lin, Ruichao | Wang, Jinhui
Ten lathyrane-type diterpenoids named Euphorbia Factor L12–L21 (1–10) and twelve known diterpenoids (11–22) were isolated from seeds of Euphorbia lathyris. The structures of these compounds were determined by extensive spectroscopic (UV, IR, HRESIMS, 1D and 2D NMR) analyses. In addition, the configuration of Euphorbia Factor L12 (1) was further confirmed by X-ray crystallographic and circular dichroism (CD) analyses. A putative biogenetic relationship to these compounds was proposed. Cytotoxicity of the isolated compounds against C6 and MCF-7 cell lines were evaluated. Compounds 1, 5, 7, 12 and 17 exhibited considerable cytotoxic activities (IC50 12.4–36.2μM).
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