title: Ecdysteroids from Rhaponticum uniflorum.
abstract: Five phytoecdysteroids were isolated from the roots of Rhaponticum uniflorum. They were identified as ecdysterone, ajugasterone C, ajugasterone C-20,22-monoacetonide, ajugasterone C-2,3,20,22-diacetonide and 5-deoxykaladasterone-20,22-monoacetonide by means of spectroscopic data. This is the first report of ajugasterone C-2,3,20,22-diacetonide and 5-deoxykaladasterone-20,22-monoacetonide isolated from a natural source.
authors.affiliation: Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China.
authors.forename: Y H
authors.initials: YH
authors.lastname: Zhang
authors.forename: H Q
authors.initials: HQ
authors.lastname: Wang
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D026461:Ecdysteroids / Q000302:isolation & purification*; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared
chemical_list: D026461:Ecdysteroids; D007202:Indicators and Reagents