孟宪君, 陈耀祖, 聂瑞麟, 周俊. 细花雪胆中的新成分——新葫芦素J. 药学学报, 1985, 20(6): 446-449.
引用本文: 孟宪君, 陈耀祖, 聂瑞麟, 周俊. 细花雪胆中的新成分——新葫芦素J. 药学学报, 1985, 20(6): 446-449.
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MENG Xian-Jun, CHEN Yao-Zu, NIE Rui-Lin , ZHOU Jun, . A NEW CUCURBITACIN FROM HEMSLEYA GRACILIFLORAJ. Acta Pharmaceutica Sinica, 1985, 20(6): 446-449.
Citation: MENG Xian-Jun, CHEN Yao-Zu, NIE Rui-Lin , ZHOU Jun, . A NEW CUCURBITACIN FROM HEMSLEYA GRACILIFLORAJ. Acta Pharmaceutica Sinica, 1985, 20(6): 446-449.
shu

细花雪胆中的新成分——新葫芦素

A NEW CUCURBITACIN FROM HEMSLEYA GRACILIFLORA

    摘要
  • 摘要: 本文报告从细花雪胆(Hemsleya graciliflora(Harms)cogn)地下茎中分离鉴定了五个化合物Ⅰa,Ⅰb,Ⅱa,Ⅱb和Ⅲ。经UV,IR,1HNMR,MS分析及催化氢化证明Ia是一个新葫芦素:19-失碳,9β-甲基,10 α-H,2β,3α,16α,20,25-五羟基,△5,23-羊毛甾二烯,11,22-双酮,25-乙酸酯即葫芦素F-25-乙酸酯(cucurbitacin F-25-acetate)。Ib是雪胆甲素(23,24-dihydrocucurbitacin F-25-acetate)。Ⅱa是葫芦素F(cucurbitacin F)。Ⅱb是雪胆乙素(23,24-dihydro-cucurbitacin F)。Ⅲ是齐墩果酸-28-O-β-D吡喃葡萄糖甙(C28-glucoside of oleanoIic acid)。

     

    Abstract: A new tetracyclic triterpene, cucurbitacin Ia was isolated from the rhizomes of Hemsleya graciliflora(Harmn)cogn. Its structure was elucidated as cucurbitacin F-25-acetate by means of IR, UV, 1HNMR, MS and chemical reaction. Other components isolated were Ib IIb: 23,24-dihydrocucurbitacinF-25-acetate, Ib IIb: 23, 24-dihydrocucurbitacinF, Ⅲ: C28-glucoside of oleanolic acid.

     

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