Pyrazole Urea-Based Inhibitors of p38 MAP Kinase: From Lead Compound to Clinical Candidate
摘要:
We report on a series of N-pyrazole, N'-aryl ureas and their mode of binding to p38 mitogen activated protein kinase. Importantly, a key binding domain that is distinct from the adenosine 5'-triphoshate (ATP) binding site is exposed when the conserved activation loop, consisting in part of Asp168-Phe169-Gly170, adopts a conformation permitting lipophilic and hydrogen bonding interactions between this class of inhibitors and the protein. We describe the correlation of the structure-activity relationships and crystallographic structures of these inhibitors with p38. In addition, we incorporated another binding pharmacophore that forms a hydrogen bond at the ATP binding site. This modification affords significant improvements in binding, cellular, and in vivo potencies resulting in the selection of 45 (BIRB 796) as a clinical candidate for the treatment of inflammatory diseases.
Pyrazole Urea-Based Inhibitors of p38 MAP Kinase: From Lead Compound to Clinical Candidate
摘要:
We report on a series of N-pyrazole, N'-aryl ureas and their mode of binding to p38 mitogen activated protein kinase. Importantly, a key binding domain that is distinct from the adenosine 5'-triphoshate (ATP) binding site is exposed when the conserved activation loop, consisting in part of Asp168-Phe169-Gly170, adopts a conformation permitting lipophilic and hydrogen bonding interactions between this class of inhibitors and the protein. We describe the correlation of the structure-activity relationships and crystallographic structures of these inhibitors with p38. In addition, we incorporated another binding pharmacophore that forms a hydrogen bond at the ATP binding site. This modification affords significant improvements in binding, cellular, and in vivo potencies resulting in the selection of 45 (BIRB 796) as a clinical candidate for the treatment of inflammatory diseases.
[EN] PYRAZOLE P38 MAP KINASE INHIBITORS<br/>[FR] INHIBITEURS DE LA MAP KINASE P38 À BASE DE PYRAZOLE
申请人:RESPIVERT LTD
公开号:WO2011121366A1
公开(公告)日:2011-10-06
There are provided inter alia compounds of formula (I): wherein R1, R2a, R2b, R3, R4, L, X, R5 and R6 are as defined in the description for use in the treatment of inflammatory diseases.
There are provided inter alia compounds of formula (I): wherein R
1
, R
2a
, R
2b
, R
3
, R
4
, L, X, R
5
and R
6
are as defined in the description for use in the treatment of inflammatory diseases.
[EN] P38 MAP KINASE INHIBITORS<br/>[FR] INHIBITEURS DE LA MAP KINASE P38
申请人:RESPIVERT LTD
公开号:WO2011124930A1
公开(公告)日:2011-10-13
There is provided a compound of formula (I): wherein: J represents (A): or (B): compositions comprising same, processes for preparing said compounds and use thereof in treatment, particularly in the treatment of inflammatory disease, such as asthma, COPD and 15 rheumatoid arthritis.