来自桃花心木的环 B、D-去甲环柠檬苦素抗饲料剂。

Rings B,D-seco limonoid antifeedants from Swietenia mahogani.

机构信息

Department of Pesticide Chemistry, Faculty of Agriculture, Alexandria University, Alexandria, Egypt.

出版信息

Phytochemistry. 2013 Dec;96:312-7. doi: 10.1016/j.phytochem.2013.08.006. Epub 2013 Sep 10.

DOI:10.1016/j.phytochem.2013.08.006

Abstract

Three phragmalin-type limonoids, swietephragmin H (1), swietephragmin I (2) and 11-hydroxyswietephragmin B (3), and a mexicanolide-type limonoid 2-hydroxy-6-deacetoxyswietenine (4), together with known compounds, 6-O-acetyl-2-hydroxyswietenin (5), 2-hydroxyswietenine (6), swietemahonin G (7), methyl 6-hydroxyangolensate (8) and 7-deacetoxy-7-oxogedunin (9) were isolated from the leaves of Swietenia mahogani (Meliaceae). Their structures were established by extensive NMR experiments in conjunction with mass spectrometry. The antifeedant activity of the isolated compounds was evaluated.

摘要

从桃花心木（Meliaceae）的叶子中分离得到三种黄烷酮型柠檬苦素，分别为苦橙素 H（1）、苦橙素 I（2）和 11-羟基苦橙素 B（3），以及一种墨西哥诺利德型柠檬苦素 2-羟基-6-去乙酰氧基苦橙宁（4），此外还分离得到已知化合物 6-O-乙酰基-2-羟基苦橙宁（5）、2-羟基苦橙宁（6）、斯威滕马洪宁 G（7）、6-羟基当归酸甲酯（8）和 7-去乙酰氧基-7-氧基吉布森宁（9）。通过广泛的 NMR 实验结合质谱确定了它们的结构。评估了分离化合物的抗食活性。