Three new (1–3) and 11 known (4–14) cycloartane-type triterpenoids were isolated from the root of Astragalus membranaceus var. mongholicus. Their structures were determined by spectroscopic analyses and chemical methods. Cycloartane-type triterpenoids are a class of major bioactive constituents in the root of A. membranaceus var. mongholicus, and the discovery of compounds 1–3 added new members of this kind of natural product.

中文翻译：

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来自黄芪变种根的环烷型三萜。蒙古人。

三个新的（1 - 3）和11已知的（4 - 14）环阿屯烷型三萜类化合物是从根分离黄芪变种。蒙古人。它们的结构通过光谱分析和化学方法确定。环烷型三萜是A. membranaceus var根中的一类主要生物活性成分。黄芪，和化合物的发现1 - 3加到这种天然产物的新成员。