Zhou J B, Tadera K, Minami Y, Yagi F, Kurawaki J, Takezaki K, Nakatani M
a Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University.
b Department of Chemistry and Bioscience, Faculty of Science, Kagoshima University.
Biosci Biotechnol Biochem. 1998;62(3):496-500. doi: 10.1271/bbb.62.496.
The root bark of Melia toosendan afforded four new limonoids with a C-19/C-29 bridged acetal structure, together with two known limonoids, 12α-hydroxyamoorastatone and its 12-acetate. The new compounds were elucidated as 1-O-acetyltrichilin H and 29-O-substituted amoorastatone derivatives, named neoazedarachins A, B and D, by spectroscopic and chemical means. Their antifeedant activity was also studied.
川楝的根皮产生了四种具有C-19/C-29桥连缩醛结构的新柠檬苦素，以及两种已知的柠檬苦素，12α-羟基印楝苦酮及其12-乙酸酯。通过光谱和化学方法，新化合物被鉴定为1-O-乙酰川楝素H和29-O-取代的印楝苦酮衍生物，命名为新苦楝素A、B和D。还研究了它们的拒食活性。
