Anoda Narumi, Matsunaga Mayumi, Kubo Miwa, Harada Kenichi, Fukuyama Yoshiyasu
Nat Prod Commun. 2016 Aug;11(8):1085-1088.
Five new ursane-type triterpenoids 1-5, and one new oleanane-type triterpenoids 7 were isolated from the MeOH extract of the aerial parts of Maytenus diversifolia. Their structures were elucidated by analyzing spectroscopic data and chemical transformation. Compounds 3 and 5 exhibited significant lethal activity in the brine shrimp lethality test (BST).
从异叶美登木地上部分的甲醇提取物中分离得到5个新的乌苏烷型三萜化合物1 - 5和1个新的齐墩果烷型三萜化合物7。通过光谱数据分析和化学转化对其结构进行了阐明。化合物3和5在卤虫致死试验(BST)中表现出显著的致死活性。