期刊
FITOTERAPIA
卷 121, 期 -, 页码 206-211出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fitote.2017.07.017
关键词
Dendrobium nobile; Sesquiterpenoids; Picrotoxane; Absolute configuration; Angiogenesis effect; Transgenic zebrafish
资金
- National Natural Science Foundation of China (NNSFC) [J1310034-28]
- Youth Science and Technology Innovation Research Team Program of Sichuan Province [2016TD0006, 2017TD0001]
Five picrotoxane sesquiterpenoids belonging to the unusual dendrobine-type (1 and 4) and the picrotoxinin-type (2, 3, and 5) were isolated from the stems of Dendrobium nobile Lindl. Their structures were established by spectroscopic analyses and physical properties. Compound 1 was a new dendrobine analogue. Although the planar structure of 2 and 3 had been reported, their absolute configurations were first determined by single crystal X-ray diffraction and circular dichroism. Compound 2 exhibited angiogenesis effect against sunitinibinduced damage on intersegmental blood vessels in Tg (fiki: EGFP) and Tg (fill: nEGFP) transgenic zebrafish at concentrations of 3.13, 6.25, 12.50, and 25.00 mu M.
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