Two new furostanol saponins from the fibrous root of Ophiopogon japonicus |
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| Authors: | Zhi-Yun Kang Meng-Jia Zhang Jian-Xin Wang Jian-Xun Liu |
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| Affiliation: | 1. Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China;2. The Pharmacy of Qingdao Sanatorium of Shandong Province, Qingdao, 266071, China;3. Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China |
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| Abstract: | Two new furostanol saponins ophiopogonins J (1) and K (2) were isolated from the fibrous roots of Ophiopogon japonicus. The structures of 1 and 2 were established as (25R)-26-O-(β-d-glucopyranosyl-(1 → 2)-β-d-glucopyranosyl)]-14-hydroxy-furost-5,20(22)-diene 3-O-α-l-rhamnopyranosyl-(1 → 2)]-β-d-glucopyranoside (1), and (25R)-26-O-(β-d-glucopyranosyl-(1 → 2)-β-d-glucopyranosyl)]-furost-5,20(22)-diene 3-O-α-l-rhamnopyranosyl-(1 → 2)(β-d-xylopyranosyl-(1 → 4)-β-d-glucopyranoside)] (2) on the basis of spectroscopic means including HRESIMS, 1D, and 2D NMR experiments. |
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| Keywords: | Ophiopogon japonicus furostanol saponin Liliaceae |
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