Two new glycosides from the whole plant of Anemone rivularis var. flore-minore |
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Authors: | Yu Ding Xiang-Rong Tian Hai-Feng Tang Jun-Tao Feng Wei Zhang Wen-Li Hai Xiao-Yang Wang Yi Wang |
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Institution: | 1. Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, PR China;2. Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Research & Development Center of Biorational Pesticide, Northwest A & F University, Yangling 712100, PR China;3. Department of Pharmacy, Dalian Sanatorium of Shenyang Military Region, Dalian 116013, PR China |
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Abstract: | Phytochemical investigation on the whole plant of Anemone rivularis var. flore-minore led to the isolation of a new labdane-type diterpene glycoside (1) and a new trihydroxyfuranoid lignanoid glycoside (2), together with three known triterpene and triterpenoid glycosides (3–5). The structures of the two new compounds were elucidated as β-d-glucopyranosyl (13S)-13-hydroxy-7-oxo-labda-8,14-diene-18-oate (1) and (7S,7′R,8R,8′S)-7′-butoxy-7,9′-epoxy-4,4′,9-trihydroxy-3,3′-dimethoxylignane 9-O-β-d-glucopyranoside (2), on the basis of extensive spectral analysis and chemical evidence. Compound 1 is characterized by a glucose (Glc) esterified C-18 carboxyl group, which is a rarely encountered labdane-type diterpene glycoside in nature. The two new compounds (1 and 2) reported here are the first examples of diterpene glycoside and lignanoid glycoside found in the genus Anemone, and the known triterpene and triterpenoid glycosides (3–5) are identified for the first time from the title plant. |
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