| Three New Dammarane Glycosides from Gynostemma pentaphyllum |
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| 作者姓名： | XinLIU RongMinYU WenLuanHSIAO ShouXunZHAO WenCaiYE |
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| 作者单位： | [1]DepartmentofPhytochemistry,ChinaPharmaceuticalUniversity,Nanjing210009 [2]SchoolofPharmacy,JinanUniversity,Guangzhou510632 [3]DepartmentofBiology,TheHongKongUniversityofScienceandTechnology,HongKong |
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| 摘 要： | Three new dammarane-type glycosides (1-3) had been isolated from the aerial part of Gynostemma pentaphyllum (Thunb) Makino. The structures of compounds 1-3 had been elucidated as 3β, 12β, 25-trihydroxy-20(S), 24(S)-epoxydammarane 3-O-β-D-glucopyranosyl (1→2)-β-D-xylo-pyranoside, 3β, 12β, 25-trihydroxy-20(S), 24(R)-epoxydammarane 3-O-β-D-glucopyranosyl(1→2)-β-D-xylopyranoside and 3β, 12β, 23β, 25-tetrahydroxy-20(S), 24(S)-epoxydammarane3-O-β-D-glucopyranosyl (1→2)-β-D-xylopyranoside, respectively, on the basis of chemical and spectro -scopic methods.
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| 关 键 词： | 达玛烷 配糖 绞股蓝 分子结构 |
Three New Dammarane Glycosides from Gynostemma pentaphyllum |
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| XinLIU RongMinYU WenLuanHSIAO ShouXunZHAO WenCaiYE.Three New Dammarane Glycosides from Gynostemma pentaphyllum[J].Chinese Chemical Letters,2004,15(1):46-48. |
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| Authors: | Xin LIU Rong Min YU Wen Luan HSIAO Shou Xun ZHAO Wen Cai YE |
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| Institution: | Xin LIU 1,Rong Min YU2,Wen Luan HSIAO 3,Shou Xun ZHAO 1,Wen Cai YE 1 * 1 Department of Phytochemistry,China Pharmaceutical University,Nanjing 210009 2 School of Pharmacy,Jinan University,Guangzhou 510632 3 Department of Biology,The Hong Kong University of Science and Technology,Hong Kong |
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| Abstract: | Three new dammarane-type glycosides (1-3) had been isolated from the aerial part of Gynostemma pentaphyllum (Thunb) Makino. The structures of compounds 1-3 had been elucidated as 3b, 12b, 25-trihydroxy-20(S), 24(S)-epoxydammarane 3-O-b-D-glucopyranosyl (12)-b-D- xylo -pyranoside, 3b, 12b, 25-trihydroxy-20(S), 24(R)-epoxydammarane 3-O-b-D-glucopyranosyl (12) -b-D-xylopyranoside and 3b, 12b, 23b, 25-tetrahydroxy-20(S), 24(S)-epoxydammarane 3-O-b-D- glucopyranosyl (12)-b-D-xylopyranoside, respectively, on the basis of chemical and spectro -scopic methods. |
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| Keywords: | Gynostemma pentaphyllum dammarane-type glycoside |
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