[摘要]：The synthesis and structure-activity relationships (SAR) of p38 alpha MAP kinase inhibitors based on a 5-amino-pyrazole scaffold are described. These studies led to the identification of compound 2j as a potent and selective inhibitor of p38 alpha MAP kinase with excellent cellular potency toward the inhibition of TNF alpha production. Compound 2j was highly efficacious in vivo in inhibiting TNF alpha production in an acute murine model of TNF alpha production. X-ray co-crystallography of a 5-amino-pyrazole analog 2f bound to unphosphorylated p38 alpha is also disclosed. (C) 2010 Elsevier Ltd. All rights reserved.
