印度楝中柠檬苦素的鉴定及其拒食活性
Identification and antifeedant activities of limonoids from Azadirachta indica.
作者信息
Yan Yu-Xin, Liu Jie-Qing, Wang Hong-Wei, Chen Jin-Xiong, Chen Jian-Chao, Chen Li, Zhou Lin, Qiu Ming-Hua
机构信息
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, (phone: +86-871-65223327; fax: +86-871-65223255).
Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, P. R. China.
出版信息
Chem Biodivers. 2015 Jul;12(7):1040-6. doi: 10.1002/cbdv.201400282.
Four new limonoids, azadiraindins A-D (1-4, resp.), together with seven known analogs, were isolated from the MeOH extract of Azadirachta indica. The structures of 1-4 were elucidated by NMR and MS spectroscopic analyses, and the relative configuration of 1 was determined by single-crystal X-ray crystallography. The compounds isolated in comparatively large amount were evaluated for their antifeedant activities against Plutella xylostella; the antifeedant rate of 10 was 90.6% and the corrected mortality of 8 was 79.2%.
从印楝的甲醇提取物中分离出四种新的柠檬苦素，分别为印楝素A-D（1-4），以及七种已知类似物。通过核磁共振（NMR）和质谱（MS）光谱分析确定了1-4的结构，并通过单晶X射线晶体学确定了1的相对构型。对分离得到的含量相对较高的化合物进行了对小菜蛾的拒食活性评估；化合物10的拒食率为90.6%，化合物8的校正死亡率为79.2%。
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