12-Hydroxy steroidal glycosides from the caudex of Yucca gloriosa.
The structures of the new steroidal saponins (tentatively named YS-XI, -XII and -XIII) have been isolated from the caudex of Yucca gloriosa and characterized as 3-O-beta-D-glucopyranosyl-(1----2)-beta-D-galactopyranosyl 5 beta- (25R)-spirostan-3 beta, 12 beta-diol, 3-O-beta-D-glucopyranosyl-(1----2)- [beta-D-glucopyranosyl-(1----3)]-beta-D-glucopyranosyl 5 beta- (25R)-spirostan-3 beta, 12 beta-diol and 3-O-beta-D-glucopyranosyl-(1----2)- beta-D-galactopyranosyl 5 beta-(25R)-spirostan-2 beta,3 beta,12 beta-triol, respectively.
Nakano
K
K
Faculty of Pharmaceutical Sciences, Tokushima University, Japan.
Hara
Y
Y
Murakami
K
K
Takaishi
Y
Y
Tomimatsu
T
T
D000107:Acetylation; D002240:Carbohydrate Sequence; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D000432:Methanol; D008745:Methylation; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010840:Phytosterols / Q000737:chemistry / Q000302:isolation & purification*; D010944:Plants / Q000032:analysis; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*
D010840:Phytosterols; D012503:Saponins; D000432:Methanol