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Aplotaxene epoxide (11,12-epoxyheptadeca-1,8,14-triene) was isolated from the roots of Cirsium hypoleucum. The pentacyclic tritepenes lupeol, taraxasterol and β-amyrin, and other acetates, were identified in C. hypoleucum, C. canum and C. carolinianum. 相似文献
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The bark of Pterocarpus santalinus has been found to contain β-amyrone, lupenone, epi-lupeol, lupeol, sitosterol and a new lupene diol whose constitution has been established as lup-(20)29-en-2α,3α-diol. 相似文献
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