Triterpenoid saponins from the bark of Nothopanax davidii.
Three new triterpenoid saponins were isolated from the alcoholic extract of the bark of Nothopanax davidii. Their structures have been determined on the basis of spectral and chemical data as 3-O-alpha-(4'-O-acetyl)-L-arabinopyranosyl-3 beta-hydroxyolean-12-ene- 28,29-dioic acid-28-O-[alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranosyl]ester, named yiyeliangwanoside IX; 3-O-alpha-(2'-O-acetyl)-L-arabinopyranosyl-3 beta-hydroxyolean-12-ene-28,29- dioic acid-28-O-[alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl(1-->6)- beta-D-glucopyranosyl] ester, named yiyeliangwanoside X; and 3-O-beta-d-xylopyranosyl-3 beta-hydroxyolean-12-ene-28,29-dioic acid-28-O-[alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl(1-->6)-b eta-D - glucopyranosyl] ester, named yiyeliangwanoside XI.
Yu
S S
SS
Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing.
Yu
D Q
DQ
Liang
X T
XT
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008516:Medicine, Chinese Traditional; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry / Q000302:isolation & purification; D009904:Optical Rotation; D010946:Plants, Medicinal; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D013055:Spectrophotometry, Infrared; D014197:Trees; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
D009844:Oligosaccharides; D012503:Saponins; D014315:Triterpenes