Chemical constituents of the aerial parts of Schnabelia tetradonta |
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Authors: | Dou Hui Zhou Yan Chen Changxiang Peng Shulin Liao Xun Ding Lisheng |
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Institution: | Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People's Republic of China. |
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Abstract: | A phytochemical study on the ethanol extract of the aerial parts of Schnabelia tetradonta led to the isolation of five new compounds, 1-5, together with seven known compounds. The structures of the new compounds were elucidated on the basis of spectral data interpretation as 2alpha,3alpha,23,29-tetrahydroxyolean-12-en-28-oic acid (1), 3-O-beta-d-glucuronopyranosyl-2beta,3beta,16beta-trihydroxy-28-norolean-12-en-15-on-23-oic acid (2), 21-O-beta-d-glucopyranosyl-3beta,21alpha,30-trihydroxyolean-13(18)-en-24-oic acid (3), 6-C-beta-l-arabinopyranosyl-8-C-alpha-l-arabinopyranosylapigenin (4), and 4-acetylaminoethylphenyl 1-O-6-O-(Z)-p-methoxycinnamoyl-beta-d-glucopyranosyl(1-->2)]-beta-d-glucopyranosyl(1-->3)]-alpha-l-rhamnopyranoside (5), respectively. |
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