title: [Studies on the chemical constituents of Fritillaria in Hubei. X. Isolation and identification of alkaloids from Fritillaria ebeiensis var.purpurea G.D.Yu et P.Li].
abstract: The bulb of Fritillaria ebeiensis var. purpurea G.D. Yu et P. Li (Liliaceae) are commercially available as the substitute for the principal Chinese traditional medicine "Beimu". This plant is easily cultivated, has high alkaloid content and conspicuous antitussive and expectorant effects. Seven C-nor-D-homo steroidal alkaloids (I-VII) were isolated from the bulb cultivated in Suizhou district, Hubei. I-IV have been identified as the known alkaloids peimine, peiminine, ebeinine and ebeinone on the basis of spectral data and by TLC and mixed mp comparison with authentic samples. The alkaloid VI, C27H43NO2, mp 186-188 degrees C, named ziebeimine, is a new alkaloid isolated from the title plant. The structure of VI has been established as 5 alpha, 14 alpha-cevanine-13, 17-dehydro-3 alpha, 6 beta-diol on the basis of its IR, 1H-NMR, 13C-NMR and mass spectra. The structure of alkaloids V and VII is still under investigation.
authors.forename: J Z
authors.initials: JZ
authors.lastname: Wu
authors.forename: X P
authors.initials: XP
authors.lastname: Pan
authors.forename: M A
authors.initials: MA
authors.lastname: Lou
authors.forename: X S
authors.initials: XS
authors.lastname: Wang
authors.forename: D K
authors.initials: DK
authors.lastname: Ling
mesh_terms: D002595:Cevanes / Q000302:isolation & purification*; D055598:Chemical Phenomena; D002621:Chemistry; D004365:Drugs, Chinese Herbal / Q000032:analysis*
chemical_list: D002595:Cevanes; D004365:Drugs, Chinese Herbal; C062683:ziebeimine