Two new steroidal saponins from "Gualou-xiebai-baijiu-tang" consisting of Fructus trichosanthis and Bulbus allii macrostemi |
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| Authors: | He Xiangjiu Qiu Feng Shoyama Yukihiro Tanaka Hiroyoki Yao Xinsheng |
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| Institution: | Department of Natural Products Chemistry, Shenyang Pharmaceutical University, P R China. |
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| Abstract: | Two new steroidal saponins were isolated from the Chinese folk medicine called Gualou-xiebai-baijiu-tang. The structures were determined to be spirost 25(27)-ene-2beta,3beta-diol-3-O-beta-D-glucopyranosyl(1-->2)-beta-D-galactopyranoside and 26-O-beta-D-glucopyranosyl-22alpha-hydroxy-5beta-furost-25(27)-ene-1beta,3beta,6beta,26-tetraol-3-O-beta-D-galactopyranoside, respectively, based on chemical evidences and spectral analysis. |
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