Three new steroidal saponins from Fritillaria pallidiflora |
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| Authors: | Shuo Shen Chao-Jun Chen Ren Bu Lu Ga Guo-Yu Li Yong Tan |
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| Affiliation: | 1. School of Pharmacy, Inner Monglia Medical College , Hohhot, 010110, China;2. School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University , Shenyang, 110016, China;3. School of Pharmacy, Inner Monglia Medical College , Hohhot, 010110, China;4. School of Pharmacy, Shihezi University , Shihezi, 832002, China |
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| Abstract: | 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. |
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| Keywords: | Fritillaria pallidiflora steroidal saponins NMR |
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