title: [Steroidal polyols from Far Eastern starfish Henricia sanguinolenta and H. leviuscula leviuscula].
abstract: Two new asterosaponins, (20R)-3-O-beta-D-(2-O-methylxylopyranosyl)-24-propylcholest-4-ene-3 beta,6 beta, 8, 15 alpha, 16 beta, 29-hexaol (sanguinoside A) and (20R,24S)-3-O-beta-D-(2,3,4-tri-O-methylxylopyranosyl)-5 alpha-cholestane-3 beta, 4 beta, 6 beta, 8, 15 alpha, 24-hexaol (sanguinoside B), were isolated from two species of Pacific Far Eastern Starfish Henricia sanguinolenta and H. leviuscula leviuscula, collected in the Sea of Okhotsk. Both glycosides contain aglycones with pentahy-droxysteroid nuclei of similar structures, which are substituted at the 3-hydroxy group with differently methylated beta-D-xylosyl residues. Sanguinoside A has an unusual structure of its aglycone side chain, whereas sanguinoside B has a unique permethylated carbohydrate chain. In addition, laevisculoside G, a known glycoside, was identified in the H. leviuscula starfish. The structures of the isolated glycosides were established by interpreting their spectral data and by comparing their spectral characteristics with those of known compounds. The English version of the paper. Russian Journal of Bioorganic Chemistry, 2004, vol. 30, no. 2; see also http://www.maik.ru.
authors.affiliation: Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022 Russia. levina@piboc.dvo.ru
authors.forename: A I
authors.initials: AI
authors.lastname: Kalinovskiĭ
authors.forename: E V
authors.initials: EV
authors.lastname: Levina
authors.forename: V A
authors.initials: VA
authors.lastname: Stonik
authors.forename: P S
authors.initials: PS
authors.lastname: Dmitrenok
authors.forename: P V
authors.initials: PV
authors.lastname: Andriiashchenko
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D011108:Polymers / Q000737:chemistry / Q000302:isolation & purification*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013215:Starfish / Q000737:chemistry*; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D011108:Polymers; D013256:Steroids; C024617:polyol