Eight previously undescribed acyl atractyligenin and carboxyatractyligenin glycosides were isolated from whole Antennaria rosea subsp. confinis (Greene) R. J. Bayer (Compositae) [syn. Leontopodium leontopodioides (Willd.) Beauv. (Asteraceae)] plants and their structures were determined by spectroscopic and chemical methods. The compounds were trivially named leontopodiosides F-M. Seven of the compounds showed potent in vitro inhibitory activity toward pancreatic lipase with IC50 values ranging from 3.4 to 52.5 μM, suggesting that they participate in the previously observed effect this plant has in reducing triglyceride absorption in rats.

中文翻译：

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来自 Antennaria rosea subsp. 的酰基白术甙元和羧基白术甙元。限定

从整个 Antennaria rosea subsp. 中分离出八种以前未描述的酰基苍术苷元和羧基苍术苷元。confinis (Greene) RJ Bayer (Compositae) [syn. Leontopodium leontopodioides (Willd.) Beauv。(菊科)]植物及其结构通过光谱和化学方法确定。这些化合物被简单地命名为leontopodiosides FM。其中七种化合物显示出对胰脂肪酶的有效体外抑制活性，IC50 值范围为 3.4 至 52.5 μM，表明它们参与了先前观察到的这种植物在减少大鼠甘油三酯吸收方面的作用。