Shirota O, Morita H, Takeya K, Itokawa H
Department of Pharmacognosy, Tokyo College of Pharmacy, Japan.
J Nat Prod. 1994 Dec;57(12):1675-81. doi: 10.1021/np50114a009.
The isolation and structure elucidation of four cytotoxic aromatic triterpenes [1-4] along with three known quinoid triterpenes [5-7] from the South American medicinal plants Maytenus ilicifolia and M. chuchuhuasca are described. The structures of these aromatic triterpenes contained aromatized A rings and C-6 oxygenated B rings, and were elucidated by 1H- and 13C-nmr spectroscopic studies and by X-ray crystallographic analysis of 3.
本文描述了从南美药用植物冬青叶美登木和丘丘瓦斯卡美登木中分离并鉴定出四种具有细胞毒性的芳香三萜类化合物[1-4]以及三种已知的醌类三萜类化合物[5-7]。这些芳香三萜类化合物的结构含有芳构化的A环和C-6氧化的B环，并通过1H-和13C-核磁共振光谱研究以及化合物3的X射线晶体学分析得以阐明。
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