- Hepatoprotective triterpenes from Sedum sarmentosum
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The known δ-amyrone, 3-epi-δ-amyrin, δ-amyrin as well as a new hydroperoxy triterpene, 18β-hydroperoxy-olean-12-en-3-one (named sarmentolin) were isolated as hepatoprotective agents from Sedum sarmentosum. Their structures were elucidated by spectral analysis and chemical reactions.
- He, Aimin,Wang, Mingshi,Hao, Hongyan,Zhang, Decheng,Lee, Kuo-Hsiung
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- New oleanene triterpenes from root bark of Calotropis procera (Ait.) R.Br.
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The structures of three oleanene type triterpenes, calotropoleanyl ester, proceroleanenol-A and proceroleanenol B, isolated from the root bark of Calotropis procera, have been elucidated as olean-13(18)-en-3β-yl acetate, olean-13(18)-en-9α-ol and olean-5, 13(18)-dien-3α-ol, respectively, on the basis of spectral data, elemental analyses and chemical reactions.
- Ansari,Ali
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p. 287 - 290
(2007/10/03)
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