Three new steroidal saponins from Fritillaria pallidiflora.
Three new steroidal saponins, pallidiflosides A (1), B (2), and C (3), have been isolated from the dry bulbs of Fritillaria pallidiflora Schrenk. Their structures were elucidated as 26-O-β-d-glucopyranosyl-(25R)-furost-5,20(22)-dien-3β,26-diol-3-O-β-d-xylopyranosyl(1 → 4)-[α-l-rhamnopyranosyl(1 → 2)]-β-d-glucopyranoside (1); 26-O-β-d-glucopyranosyl-3β,26-dihydroxyl-20,22-seco-25(R)-furost-5-en-20,22-dione-3-O-α-l-rhamnopyranosyl(1 → 2)-β-d-glucopyranoside (2); and (25R)-spirost-5-ene-3β,17α-diol-3-O-β-d-glucopyranosyl(1 → 4)-β-d-galactopyranoside (3) by spectroscopic techniques and chemical means.
School of Pharmacy, Inner Monglia Medical College, Hohhot, 010110, China.
Shuo
S
Shen
Chao-Jun
CJ
Chen
Ren
R
Bu
Lu
L
Ga
Guo-Yu
GY
Li
Yong
Y
Tan
Xian
X
Li
Jin-Hui
JH
Wang
D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D031410:Fritillaria / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013237:Stereoisomerism; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*
D004365:Drugs, Chinese Herbal; D012503:Saponins; D013256:Steroids; C569181:pallidifloside A; C569182:pallidifloside B; C569183:pallidifloside C