Two new steroidal saponins from Tribulus terrestris L.
Two new steroidal saponins were isolated from the fruits of Tribulus terrestris L. Their structures were elucidated by spectroscopic and chemical analysis as (23S,24R,25R)-5alpha-spirostane-3beta,23,24-triol-3-O-{alpha-L-rhamnopyranosyl-(1 --> 2)-[beta-D-glucopyranosyl-(1 --> 4)]-beta-D-galactopyranoside} (1) and (23S,24R,25S)-5alpha-spirostane-3beta,23,24-triol-3-O-{alpha-L-rhamnopyranosyl-(1 --> 2)-[beta-D-glucopyranosyl-(1 --> 4)]-beta-D-galactopyranoside} (2).
Liu
Tao
T
School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China.
Lu
Xuan
X
Wu
Biao
B
Chen
Gang
G
Hua
Hui-Ming
HM
Pei
Yue-Hu
YH
D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005638:Fruit / Q000737:chemistry; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013150:Spirostans / Q000737:chemistry / Q000302:isolation & purification*; D013237:Stereoisomerism; D032444:Tribulus / Q000737:chemistry*
C549256:5alpha-spirostane-3beta,23,24-triol-3-O-(alpha-L-rhamnopyranosyl-(1 -2))-(beta-D-glucopyranosyl-(1-4)-beta-D-galactopyranoside); D004365:Drugs, Chinese Herbal; D012503:Saponins; D013150:Spirostans