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Endecaphyllacin : ウィキペディア英語版
Endecaphyllacin
Endecaphyllacin is either of two similar compounds found in certain plants, such as ''Hemsleya endecaphylla''.〔Jian-Chao Chen, Gao-Hong Zhang, Zhong-Quan Zhang, Ming-Hua Qiu, Yong-Tang Zheng, Liu-Meng Yang, Kai-Bei Yu (2008), "Octanorcucurbitane and Cucurbitane Triterpenoids from the Tubers of ''Hemsleya endecaphylla'' with HIV-1 Inhibitory Activity". ''J. Nat. Prod.'' volume 71, pages 153–155 〕
* Endecaphyllacin A, 2β-hydroxy-20,21,22,23,24,25,26,27-octanorcucurbita-5-ene-3,11,16-trione, . Crystallizes with 1 molecule of methanol as colorless prisms, mp 207-209 °C;〔
* Endecaphyllacin B, 2-hydroxy-20,21,22,23,24,25,26,27-octanorcucurbita-1,5-dien-3,11,16-trione, . It is the aglycon of khekadaengoside L from ''Trichosanthes tricuspidata''. Crystallizes from methanol as colorless prisms, mp 229-231 °C〔
Endecaphyllacins A and B can be extracted from the dried tubers of ''Hemsleya endecaphylla'' with methanol, at concentrations 150 mg/72 g and 20 mg/72 g.
== References ==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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