| Insignin A, A Novel C_21-Steroidal Aglycone from Biondia insignis |
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| 作者姓名： | Yuan Hu ZHANG Yue Mao SHEN* Yuan Ying WEN* Ting Yun KUANG Laboratory of Phytochemistry and |
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| 作者单位： | Yuan Hu ZHANG2，Yue Mao SHEN1*，Yuan Ying WEN2*，Ting Yun KUANG2 1Laboratory of Phytochemistry and Department of Plant Biotechnology，Kunming Institute of Botany，Chinese Academy of Sciences，Kunming 650204 2Laboratory of Phytochemistry，Institute of Bot |
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| 摘 要： | The genus Biondia having six species is exclusively distributed in China. But none of them was investigated in the aspect of phytochemistry before this work. From the view of plant taxonomy, the genus Biondia in the Trib. Asclepiadeae is close to the genus Cynanchum, and the plants of the latter mainly contain C21-steroids. In order to investigate whether the plants of the genus Biondia have C21-steroidal compounds and what kind of skeleton they may have, the whole plant of Biondia insigni…
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Insignin A, A Novel C21-Steroidal Aglycone from Biondia insignis |
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| Yuan Hu ZHANG,Yue Mao SHEN*,Yuan Ying WEN*,Ting Yun KUANG Laboratory of Phytochemistry and.Insignin A, A Novel C_21-Steroidal Aglycone from Biondia insignis[J].Chinese Chemical Letters,2000,11(12). |
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| Authors: | Yue Mao SHEN Yuan Hu ZHANG Yuan Ying WEN Ting Yun KUANG |
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| Abstract: | Insignin A, a new C21-steroidal aglycone having the rare 15,16-seco pregnane skeleton was isolated from the acidic hydrolysis part of the 95% EtOH extract of Biondia insignis. It's structure was identified to be 15R,16-epoxy-3?,14?,16?-trihydroxy-15,16-secopregn-5-ene-20-one based on the spectral data. |
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| Keywords: | Asclepiadaceae Biondia insignis C21-steroidal aglycone insignin A |
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