Triterpenoid saponins from Bellium bellidioides. Structures of the minor deacylsaponins.
A new deacylsaponin of polygalacic acid, desacylbellidioside B4, was obtained from the whole plants of Bellium bellidioides L. The structure has been elucidated by a general strategy involving mass spectrometry (ESI-MS, including tandem MS, and GC-MS) and high-field one- and two-dimensional NMR spectroscopy (1H and 13C NMR, COSY-45, HMQC, HMBC) as 3-O-alpha-L-rhamnopyranosyl-2 beta, 3 beta, 16 alpha, 23-tetrahydroxyolean-12-en-28-oic acid 28-O-alpha-L-rhamnopyranosyl(1-->3)-beta-D-xylopyranosyl(1-->4)-alpha-L- rhamnopyranosyl(1-->2)-[alpha-L-arabinofuranosyl(1-->3)-beta-D-fucopyran oside. Moreover, bellissaponin BS2 and besysaponin C12 have also been isolated, demonstrating the close chemical relationship of B. bellidioides to the Bellis genus.
Schöpke
T
T
Institut für Pharmazie, Humboldt-Universität zu Berlin, Germany.
Wray
V
V
Nimtz
M
M
Hiller
K
K
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry / Q000302:isolation & purification; D010936:Plant Extracts; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
D009844:Oligosaccharides; D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes