Thienotriazolodiazepines as platelet-activating factor antagonists. Steric limitations for the substituent in position 2

J Med Chem. 1991 Apr;34(4):1440-6. doi: 10.1021/jm00108a031.

Abstract

The preparations of thienotriazolodiazepines bearing a substituted ethynyl group at the 2-position, and the corresponding cis-olefins and fully saturated analogues are described. The compounds were evaluated as potential antagonists of platelet-activating factor (PAF) in in vitro and in vitro test models. The new thienotriazolodiazepines are compared with known related compounds such as WEB 2086 (compound 6) and the phenylethyl derivatives 27 and 28.

Publication types

  • Comparative Study

MeSH terms

  • Animals
  • Azepines / chemical synthesis*
  • Azepines / chemistry
  • Azepines / pharmacology
  • Guinea Pigs
  • Indicators and Reagents
  • Lung / drug effects
  • Lung / physiology
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Platelet Activating Factor / antagonists & inhibitors*
  • Structure-Activity Relationship
  • Thiophenes / chemical synthesis*
  • Thiophenes / chemistry
  • Thiophenes / pharmacology
  • Triazoles / chemical synthesis*
  • Triazoles / chemistry
  • Triazoles / pharmacology

Substances

  • Azepines
  • Indicators and Reagents
  • Platelet Activating Factor
  • Thiophenes
  • Triazoles
  • WEB 2086