adj.四环的

Limonoids are a group of highly oxygenated,tetracyclic triterpene secondary metabolites derivatives. 柠檬苦素类似物是一类高度氧化的四环三萜类植物次生代谢物质。

Three tetracyclic triterpenoid acids,named ganoderic acids M1,M2,M3,were isolated from the fermentaion products by submerged fermentation of G. 从灵芝深层发酵产物中分离得到三种四环三萜酸,命名为灵芝酸M1,M2,M3。

Conclusion: The ear points pressing combined with oral tetracycl ine was a good way in freatment of female acne, which can be used in clinic practice. 结论:耳穴按压法治疗痤疮有良好疗效,可能与降低血清睾酮水平有关。

Three tetracyclic triterpenoid acids, named ganoderic acids M1, M2, M3, were isolated from the fermentaion products by submerged fermentation of G. lucidum. 从灵芝深层发酵产物中分离得到三种四环三萜酸，命名为灵芝酸M1, M2, M3。

The invention relates to a pharmaceutical composition with dammarane-type tetracyclic triterpene compound as an active component and an application thereof to the pharmaceutical field. 本发明涉及达玛烷型四环三萜类化合物为活性成分的药物组合物及其在医药领域中的应用。