Synthetic studies of sesquiterpenes with a cis-fused decalin system, 5. A synthetic approach to the study of structure-activity relationships of the termiticidal norsesquiterpenoids, chamaecynone and related compounds

J Nat Prod. 1994 Jul;57(7):924-33. doi: 10.1021/np50109a008.

Abstract

Various analogues of chamaecynone [1] were prepared from alpha-santonin, and the termiticidal activity of these compounds was examined. All compounds possessing a 5 beta H-13-noreudesmane skeleton with a ethynyl group at C-7 showed significant termiticidal activity. Changes in the structure of the A-ring of these compounds also influenced the potency of their termiticidal activity.

MeSH terms

  • Animals
  • Hymenoptera
  • Insecticides / chemical synthesis*
  • Insecticides / chemistry
  • Magnetic Resonance Spectroscopy
  • Plants / chemistry*
  • Sesquiterpenes / chemical synthesis*
  • Sesquiterpenes / chemistry
  • Structure-Activity Relationship

Substances

  • Insecticides
  • Sesquiterpenes
  • chamaecynone