Furostanol oligoglycosides from Asparagus cochinchinensis |
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| Authors: | Jian-gong Shi Guo-Qiang Li Sheng-Yang Huang Shun-Yan Mo Yan Wang Yong-Chun Yang |
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| Institution: | 1. Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Bejing, China shijg@imm.ac.cn;3. Qingdao University of Science and Technology , 266042, Qingdao, China;4. Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Bejing, China |
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| Abstract: | Three new furostanol oligoglycosides, named aspacochioside A (1), B (2) and C (3), together with the known compound 3-O-{α-l-rhamnopyranosyl-(1→4)}{β-d-glucopyranosyl}]-26-O-β-d-glucopyranosyl]-(25S)-5β-spirostane-3β-ol were isolated from the roots of Asparagus cochinchinensis. Their structures were elucidated by spectroscopic techniques (IR, HR-ESIMS, ESIMS/MS, 1D and 2D NMR) and chemical methods as 3-O-{α-l-rhamnopyranosyl-(1→4)}{β-d-glucopyranosyl}]-26-O-β-d-glucopyranosyl]-(25S)-5β-furostane-3β,22α,26-triol (1), 3-O-{α-l-rhamnopyranosyl-(1→4)}{β-d-glucopyranosyl}]-26-O-β-d-glucopyranosyl]-22α-methoxy-(25S)-5β-furostane-3β,26-diol (2), and 3-O-{α-l-rhamnopyranosyl-(1→4)}{β-d-glucopyranosyl}]-26-O-β-d-glucopyranosyl]-(25S)-5β-furost-20(22)-en-3β,26-diol (3). |
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| Keywords: | Furostanol oligoglycosides Aspacochiosides A–C |
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