A class of pyrazole derivatives is described for use in treating p38 kinase medicated disorders. Compounds of particular interest are defined by Formula IA
wherein R
1
, R
2
, R
3
and R
4
are as described in the specification.
This invention relates to a novel process of preparing selected 5-substituted pyrazoles useful as p38 kinase and COX-2 inhibitors.
这项发明涉及一种新颖的工艺,用于制备作为p38激酶和COX-2抑制剂有用的选定的5-取代吡唑。
Synthesis, Crystal Structure, and Activity of Pyrazole-Based Inhibitors of p38 Kinase
作者:Matthew J. Graneto、Ravi G. Kurumbail、Michael L. Vazquez、Huey-Sheng Shieh、Jennifer L. Pawlitz、Jennifer M. Williams、William C. Stallings、Lifeng Geng、Ashok S. Naraian、Francis J. Koszyk、Michael A. Stealey、Xiangdong D. Xu、Richard M. Weier、Gunnar J. Hanson、Robert J. Mourey、Robert P. Compton、Stephen J. Mnich、Gary D. Anderson、Joseph B. Monahan、Rajesh Devraj
DOI:10.1021/jm0611915
日期:2007.11.1
A series of pyrazole inhibitors of p38 mitogen-activated protein (MAP) kinase were designed using a binding model based on the crystal structure of 1 (SC-102) bound to p38 enzyme. New chemistry using dithietanes was developed to assemble nitrogen-linked substituents at the 5-position of pyrazoles. Calculated log D was used in tandem with structure-based design to guide medicinal chemistry strategy and improve the in vivo activity of a series of molecules. The crystal structure of an optimized inhibitor, 4 (SC-806), in complex with p38 enzyme was obtained to confirm the hypothesis that the addition of a basic nitrogen to the molecule induces an interaction with Asp112 of p38 alpha. A compound identified from this series was efficacious in an animal model of rheumatic disease.