Neopierisoids A and B, Two New Chlorinated 3,4-seco-Grayanane Diterpenoids with Antifeedant Activity from Flowers of Pieris japonica
Neopierisoids A and B, Two New Chlorinated 3,4-seco-Grayanane Diterpenoids with Antifeedant Activity from Flowers of Pieris japonica
复制标题
Neopierisoid A 和 B，两种来自菜粉蝶花的具有拒食活性的新型氯化 3,4-seco-Grayanane 二萜
DOI：
10.1021/jf401921x
复制
发表时间：
2013-07-31
影响因子：
6.1
通讯作者：
Li, Rong-Tao
中科院分区：
文献类型：
--
作者：
Li, Yan-Ping;Li, Xiao-Nian;Li, Rong-Tao
从有毒植物Pieris japonica花中分离到两个新的氯化多酰基3,4-二烷基二萜neopierisoids A和B(1和2)，并通过光谱分析和x射线衍射数据进行了鉴定。两种化合物均表现出明显的拒食活性，其中1的EC50为10.07 μ g/cm(2)， 2的EC50为5.33 μ g/cm(2)，具有一定的毒性。粳稻中氯化的3,4-次格雷烷二萜可能对食草动物具有防御作用。
Two new chlorinated multiacylated 3,4-seco-grayanane diterpenoids, neopierisoids A and B (1 and 2), were isolated from flowers of the poisonous plant Pieris japonica and were identified from spectroscopic analysis and X-ray diffraction data. Both compounds showed obvious antifeedant activity against Pieris brassicae with an EC50 of 10.07 mu g/cm(2) for 1 and 5.33 mu g/cm(2) for 2, indications of toxic properties. Chlorinated 3,4-seco-grayanane diterpenoids in P. japonica may play a defensive role against herbivores.