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从玄参科的苦玄参植物中分出一系列苦味苷的苷元。苦玄参苷元Ⅰ(1)是其主要成分。通过1及其衍生物的Uv,IR,~1HNMR,~(13)CNMR及MS的谱学分析和若干化学反应确定1的结构为具有二氢呋喃酮边链的新型四环三萜。苦玄参苷经药理实验证明有抗癌活性。
Scrophulariaceae from the Scrophulariaceae bitter figwort plants in a series of bitter glycosides aglycone. Bitter figurin glycosides Ⅰ (1) is the main component. The structures of 1 were determined to be novel tetracyclic triterpenes with dihydrofuranone side chains by spectroscopic analysis of Uv, IR, ~ 1HNMR, ~ (13) CNMR and MS and their chemical reactions. Bitter Scrophulariaceae glycosides pharmacological experiments have shown anti-cancer activity.