Reyes Carolina P, Jiménez Ignacio A, Bazzocchi Isabel L
Nat Prod Commun. 2017 May;12(5):675-678.
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.
对秘鲁美登木（卫矛科）根皮提取物进行的植物化学分析，导致分离并鉴定出16种具有6/6/6/6/6五环系统的三萜类化合物，包括新的22α-羟基-29-甲氧基-3β-十四烷酸酯-齐墩果-12-烯，以及首次作为天然产物报道的3β,24β-环氧-29-甲氧基-2α,3α,6α-三羟基-D:A-弗瑞德烷。这是首次从卫矛科植物中分离出十四烷酸三萜酯。这些结构是基于光谱和波谱方法阐明的，包括一维和二维核磁共振技术。
