New Limonoids from Melia toosendan

  • Biosci Biotechnol Biochem. 1998;62(3):496-500. doi: 10.1271/bbb.62.496.
J B Zhou  1 K Tadera  1 Y Minami  1 F Yagi  1 J Kurawaki  2 K Takezaki  3 M Nakatani  2
Affiliations
  • 1. a Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University.
  • 2. b Department of Chemistry and Bioscience, Faculty of Science, Kagoshima University.
  • 3. c Kagoshima Prefectural Agricultural Experiment Station.
Abstract

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.

Keywords
1-O-acetyltrichilin H; Melia toosendan; antifeedant; limonoid; neoazedarachins.
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