New polyhydroxylated steroidal saponins from the tubers of Brodiaea californica.
New polyhydroxylated steroidal saponins (1, 2) were isolated from the tubers of Brodiaea californica. The structures were determined by spectroscopic analysis and acid-catalyzed hydrolysis. The bisdesmosidic saponin (2) is unique in structure, and is the first representative of a steroidal saponin bearing 6-deoxy-D-gulopyranose among both the steroidal and triterpene saponins reported up to the present.
Mimaki
Y
Y
School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan.
Kuroda
M
M
Nakamura
O
O
Sashida
Y
Y
Satou
T
T
Koike
K
K
Nikaido
T
T
D002851:Chromatography, High Pressure Liquid; D006900:Hydroxylation; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D010945:Plants, Edible / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry*; D013256:Steroids / Q000737:chemistry*
D012503:Saponins; D013256:Steroids