Optimization of 2,4-diaminopyrimidines as GHS-R antagonists: side chain exploration

Bioorg Med Chem Lett. 2006 Apr 1;16(7):1864-8. doi: 10.1016/j.bmcl.2006.01.012. Epub 2006 Jan 25.

Abstract

The synthesis and structure-activity relationships of the 4- and 6-substituents of 2,4-diaminopyrimidine-based growth hormone secretagogue receptor (GHS-R) antagonists are described. Diaminopyrimidines with 6-norbornenyl (4n) and 6-tetrahydrofuranyl (4p) substitutents were found to exhibit potent GHS-R antagonism and good selectivity (approximately 1000-fold) against dihydrofolate reductase.

MeSH terms

  • Pyrimidines / chemistry
  • Pyrimidines / pharmacology*
  • Receptors, G-Protein-Coupled / antagonists & inhibitors*
  • Receptors, Ghrelin
  • Structure-Activity Relationship
  • Tetrahydrofolate Dehydrogenase / drug effects

Substances

  • Pyrimidines
  • Receptors, G-Protein-Coupled
  • Receptors, Ghrelin
  • Tetrahydrofolate Dehydrogenase