Discovery of N-[2-[2-[[3-methoxy-4-(5-oxazolyl)phenyl]amino]-5-oxazolyl]phenyl]-N-methyl-4- morpholineacetamide as a novel and potent inhibitor of inosine monophosphate dehydrogenase with excellent in vivo activity

J Med Chem. 2002 May 23;45(11):2127-30. doi: 10.1021/jm0105777.

Abstract

Inosine monophosphate dehydrogenase (IMPDH) is a key enzyme that is involved in the de novo synthesis of purine nucleotides. Novel 2-aminooxazoles were synthesized and tested for inhibition of IMPDH catalytic activity. Multiple analogues based on this chemotype were found to inhibit IMPDH with low nanomolar potency. One of the analogues (compound 23) showed excellent in vivo activity in the inhibition of antibody production in mice and in the adjuvant induced arthritis model in rats.

MeSH terms

  • Animals
  • Antibody Formation / drug effects
  • Arthritis, Experimental / drug therapy
  • Enzyme Inhibitors / chemical synthesis*
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology
  • Enzyme-Linked Immunosorbent Assay
  • IMP Dehydrogenase / antagonists & inhibitors*
  • Male
  • Mice
  • Mice, Inbred BALB C
  • Morpholines / chemical synthesis*
  • Morpholines / chemistry
  • Morpholines / pharmacology
  • Mycophenolic Acid / analogs & derivatives*
  • Mycophenolic Acid / pharmacology
  • Oxazoles / chemical synthesis*
  • Oxazoles / chemistry
  • Oxazoles / pharmacology
  • Rats
  • Rats, Inbred Lew
  • Structure-Activity Relationship

Substances

  • Enzyme Inhibitors
  • Morpholines
  • N-(2-(2-((3-methoxy-4-(5-oxazolyl)phenyl)amino)-5-oxazolyl)phenyl)-N-methyl-4-morpholineacetamide
  • Oxazoles
  • IMP Dehydrogenase
  • Mycophenolic Acid