Insect antifeedants from Munronia henryi: structure of munroniamide

J Agric Food Chem. 2003 Nov 19;51(24):6949-52. doi: 10.1021/jf030292y.

Abstract

A novel A,B-seco-tetranortriterpenoid lactam, named munroniamide (1), along with three known ceramides (2-4), was isolated from the methanolic extract of the whole bodies of Munronia henryi. The structure of 1 was established using spectroscopic methods. Compound 2 exhibited significant antifeeding activity, and 1 exhibited moderate activity, whereas 3 and 4 showed negative activity against Pieris brassicae L.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Ceramides / chemistry
  • Ceramides / isolation & purification
  • Eating / drug effects
  • Insecta / physiology
  • Insecticides / chemistry*
  • Insecticides / isolation & purification
  • Insecticides / pharmacology
  • Limonins / chemistry*
  • Limonins / isolation & purification
  • Limonins / pharmacology
  • Magnetic Resonance Spectroscopy
  • Meliaceae / chemistry*
  • Molecular Structure
  • Plant Extracts / chemistry
  • Triterpenes / chemistry*
  • Triterpenes / isolation & purification
  • Triterpenes / pharmacology

Substances

  • Ceramides
  • Insecticides
  • Limonins
  • Plant Extracts
  • Triterpenes
  • munroniamide