笔者讨论了一些五环三萜类化合物的药理活性与结构的关系。
This article is reviewing the structure-activity relationship of pentacyclic triterpenes.
熊果酸属于五环三萜类化合物，广泛存在于天然植物中，具有多种显著的药理活性。
Ursolic acid, a pentacyclic triterpene compound, naturally occurs in a large variety of plants, has attracted considerable interest owing to its significant biological activities.
其主要功能成分是人参皂苷，即达玛烷型四环三萜类或香树脂烷型五环三萜类化合物，至今人参皂苷尚未能人工合成。
Ginsenoside, the main components of ginseng, is dammarane tetracyclic triterpenoids or hong resin alkyl type pentacyclic triterpene, which has not yet been synthesized artificially.
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