Dual M3 antagonists-PDE4 inhibitors. Part 2: Synthesis and SAR of 3-substituted azetidinyl derivatives

Bioorg Med Chem Lett. 2007 Jun 1;17(11):3077-80. doi: 10.1016/j.bmcl.2007.03.047. Epub 2007 Mar 19.

Abstract

Introduction of 3-substituted azetidinyl substituents onto the 4,6-diaminopyrimidine scaffold allowed the improvement of PDE4 inhibiting activities. Preliminary in vivo activity in pulmonary inflammation models is reported.

MeSH terms

  • 3',5'-Cyclic-AMP Phosphodiesterases / antagonists & inhibitors*
  • Animals
  • Azetidines / chemistry*
  • Cyclic Nucleotide Phosphodiesterases, Type 4
  • Female
  • Guinea Pigs
  • Humans
  • Mice
  • Mice, Inbred BALB C
  • Pyrimidines / chemical synthesis
  • Pyrimidines / chemistry*
  • Pyrimidines / pharmacology*
  • Receptor, Muscarinic M3 / antagonists & inhibitors*
  • Structure-Activity Relationship

Substances

  • Azetidines
  • Pyrimidines
  • Receptor, Muscarinic M3
  • 3',5'-Cyclic-AMP Phosphodiesterases
  • Cyclic Nucleotide Phosphodiesterases, Type 4