Pyrrolopyridine inhibitors of mitogen-activated protein kinase-activated protein kinase 2 (MK-2)

J Med Chem. 2007 May 31;50(11):2647-54. doi: 10.1021/jm0611004. Epub 2007 May 5.


A new class of potent kinase inhibitors selective for mitogen-activated protein kinase-activated protein kinase 2 (MAPKAP-K2 or MK-2) for the treatment of rheumatoid arthritis has been prepared and evaluated. These inhibitors have IC50 values as low as 10 nM against the target and have good selectivity profiles against a number of kinases including CDK2, ERK, JNK, and p38. These MK-2 inhibitors have been shown to suppress TNFalpha production in U397 cells and to be efficacious in an acute inflammation model. The structure-activity relationships of this series, the selectivity for MK-2 and their activity in both in vitro and in vivo models are discussed. The observed selectivity is discussed with the aid of an MK-2/inhibitor crystal structure.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Acute Disease
  • Animals
  • Anti-Inflammatory Agents, Non-Steroidal / chemical synthesis*
  • Anti-Inflammatory Agents, Non-Steroidal / chemistry
  • Anti-Inflammatory Agents, Non-Steroidal / pharmacology
  • Crystallography, X-Ray
  • Humans
  • Inflammation / drug therapy
  • Intracellular Signaling Peptides and Proteins
  • Models, Molecular
  • Protein Serine-Threonine Kinases / antagonists & inhibitors*
  • Protein Serine-Threonine Kinases / chemistry
  • Pyridines / chemical synthesis*
  • Pyridines / chemistry
  • Pyridines / pharmacology
  • Pyrroles / chemical synthesis*
  • Pyrroles / chemistry
  • Pyrroles / pharmacology
  • Rats
  • Structure-Activity Relationship
  • Tumor Necrosis Factor-alpha / antagonists & inhibitors
  • Tumor Necrosis Factor-alpha / biosynthesis
  • U937 Cells


  • Anti-Inflammatory Agents, Non-Steroidal
  • Intracellular Signaling Peptides and Proteins
  • Pyridines
  • Pyrroles
  • Tumor Necrosis Factor-alpha
  • MAP-kinase-activated kinase 2
  • Protein Serine-Threonine Kinases