Four new triterpenoid glycosides from the seed residue of Hippophae rhamnoides subsp. sinensis |
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Authors: | Chao Chen Wen Gao Liang Cheng Yan Shao |
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Institution: | 1. State Key Laboratory of New Drug &2. Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, Shanghai, 200040, China |
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Abstract: | Four new triterpenoid saponins (1–4) were isolated from the seed residue of Hippophae rhamnoides subsp. sinensis, named 3-O-β-d-glucopyranosyl(1 → 2)-β-d-glucopyranosyl-(1 → 3)]-α-l-rhamnopyranosyl-(1 → 2)]-α-l-arabinopyranosyl-13-ene-19-one-28-oic acid 28-O-β-d-glucopyranosyl ester (1), 3-O-β-d-glucopyranosyl(1 → 2)-β-d-glucopyranosyl-(1 → 3)]-α-l-rhamnopyranosyl-(1 → 2)]-α-l-arabinopyranosyl-13-ene-19-one-30-hydroxyolean-28-oic acid 28-O-β-d-glucopyranosyl ester (2), 3-O-β-d-glucopyranosyl(1 → 2)-β-d-glucopyranosyl-(1 → 3)]-α-l-rhamnopyranosyl-(1 → 2)]-β-d-glucopyranosyl-13-ene-19-one-28-oic acid 28-O-β-d-glucopyranosyl ester (3), and 3-O-β-d-glucopyranosyl(1 → 2)-β-d-glucopyranosyl-(1 → 3)]-α-l-rhamnopyranosyl-(1 → 2)]-β-d-glucopyranosyl-13-ene-19-one-30-hydroxyolean-28-oic acid 28-O-β-d-glucopyranosyl ester (4), and their structures were elucidated on the basis of spectroscopic and chemical methods. |
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Keywords: | Hippophae rhamnoides subsp sinensis hippophosides A–D triterpenoid saponins |
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