Lupane-triterpene carboxylic acids from the leaves of Acanthopanax trifoliatus |
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| Authors: | Kiem Phan Van Cai Xing Fu Minh Chau Van Lee Jung Joon Kim Young Ho |
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| Institution: | Institute of Natural Products Chemistry, NCST, Caugiay, Hanoi, Vietnam. |
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| Abstract: | Two new lupane-triterpene carboxylic acids, called acantrifoic acid A (1) and acantrifoside C (2) have been isolated from the leaves of Acanthopanax trifoliatus. Based on extensive 1D and 2D NMR spectroscopic data, their chemical structures were determined as 3 alpha-acetoxy-30-hydroxylup-20(29)-ene-23,28-dioic acid and 3 alpha-acetoxy-30-hydroxylup-20(29)-ene-23,28-dioic acid 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl ester. |
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