| Two New C21 Steroids from Marsdenia tenacissima |
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| 作者姓名： | JunDENG ZhiXinLIAO DaoFengCHEN |
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| 作者单位： | DepartmentofPharmacognosy,SchoolofPharmacy,FudanUniversity,Shanghai200032 |
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| 摘 要： | Two new C21 steroids were isolated from the CHCI3 extract of the stem of Marsdenia tenacissima. On the basis of spectroscopic analysis and chemical methods, their structures were elucidated as 1713-tenacigenin B (2) and 3-O-6-deoxy-3-O-methyl-β-D-allopyranosyl-(l→4)-β-D-oleandropyranosyl-tenacigenin C (3). The structure of the known aglycon tenacigenin C was revised as 5ct, 9ct, 1713-pregnane-313, 813, llct, 1213, 14β-pentanol-20-one. Compound 3 is the firstreported glycoside of tenacigenin C.
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| 关 键 词： | 类固醇 碳21 Marsdenia tenacissima 马利筋科 中药 化学分析 |
Two New C21 Steroids from Marsdenia tenacissima |
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| JunDENG ZhiXinLIAO DaoFengCHEN.Two New C21 Steroids from Marsdenia tenacissima[J].Chinese Chemical Letters,2005,16(4):487-490. |
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| Authors: | Jun DENG Zhi Xin LIAO Dao Feng CHEN? |
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| Institution: | Jun DENG,Zhi Xin LIAO,Dao Feng CHEN? Department of Pharmacognosy,School of Pharmacy,Fudan University,Shanghai 200032 |
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