A new phytoecdysone from the roots of Rhaponticum uniflorum.
A new ecdysteroid named rhapontisterone R1 (1) together with two known phytoecdysones, rhapontisterone (2) and ecdysterone (3) were isolated from the roots of Rhaponticum uniflorum (L.) DC. The new compound was shown to be 2beta,3beta,11alpha,14alpha,20xi,22xi-hexahydroxy-stigma-7,24(28)-dien-6-oxo-28,25-carbolactone. The structure has been determined primarily on the basis of physico-chemical properties and spectral analysis.
Research Department of Natural Medicinal, Shenyang Pharmaceutical University, China. lixian@mail.sy.ln.cn
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D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal; D004440:Ecdysone / Q000737:chemistry / Q000302:isolation & purification*; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D010840:Phytosterols / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry
D004365:Drugs, Chinese Herbal; D010840:Phytosterols; C021238:phytoecdysones; D004440:Ecdysone