Phytochemical analysis of the root bark extract of Maytenus cuzcoina (Celastraceae) led to the isolation and characterization of sixteen triterpenoids with a 6/6/6/6/6 pentacyclic system, including the new 22α-hydroxy-29-methoxy-3β-tetradecanoate-olean-12-ene, and 3β,24β-epoxy-29-methoxy-2α,3α,6α- -trihydroxy-D:A-friedelane that is reported for the first time as a natural product. This is the first instance of the isolation of a tetradecanoate triterpene ester from a Celastraceae species. The structures were elucidated on the basis of spectrometric and spectroscopic methods, including ID and 2D NMR techniques.

中文翻译：

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Maytenus cuzcoina的五环三萜类化合物。

对Maytenus cuzcoina（Celastraceae）根皮提取物的植物化学分析导致​​分离并鉴定了具有6/6/6/6/6五环体系的十六种三萜类化合物，包括新的22α-羟基-29-甲氧基-3β-十四烷酸酯首次报告为天然产物的-油烯-12-烯和3β，24β-环氧-29-甲氧基-2α，3α，6α--三羟基-D：A-丁烯烷。这是从Celastraceae种中分离十四烷酸酯三萜酯的第一个实例。在光谱学和光谱学方法（包括1D和2D NMR技术）的基础上阐明了结构。