Synthesis of Imidazole Based p38 MAP (Mitogen-Activated Protein) Kinase Inhibitors under Buffered Conditions
摘要:
This article describes chemistry that was developed to give access to multigram quantities of imidazole 479754 and several related analogues for Eli Lilly's p38 MAPK program targeting therapies to address inflammation. The molecules of interest have an isopropyl sulfonyl group present on the 2-aminobenzimidazole heterocycyle that was found to be labile when heated in polar solvents and/or exposed to high or low pH. Due to this instability issue, the syntheses of the target molecules required optimizing Sonogashira reaction conditions, employing a buffered oxidative method to produce alpha-diones, developing buffered reaction conditions to generate imidazoles, and developing final recrystallization conditions.
[EN] BENZIMIDAZOLES AND BENZOTHIAZOLES AS INHIBITORS OF MAP KINASE<br/>[FR] BENZIMIDAZOLES ET BENZOTHIAZOLES UTILISES COMME INHIBITEURS DE LA MAP KINASE
申请人:LILLY CO ELI
公开号:WO2004014900A1
公开(公告)日:2004-02-19
The present invention provides kinase inhibitors of Formula I: wherein W represents inter alia imidazol, oxazol, pyrazol, thiazol as triazol, which are substituted by phenyl or thienyl. The disclosed compounds inhibit p-38 kinase and are useful in the treatment of metastasis or rheumatoid arthritis.
Benzimidazoles and benzothiazoles as inhibitors of map kinase
申请人:Bonjouklian Rosanne
公开号:US20050272791A1
公开(公告)日:2005-12-08
The present invention provides kinase inhibitors of Formula I: wherein W represents inter alia imidazol, oxazol, pyrazol, thiazol as triazol, which are substituted by phenyl or thienyl. The disclosed compounds inhibit p-38 kinase and are useful in the treatment of metastasis or rheumatoid arthritis.
BENZIMIDAZOLES AND BENZOTHIAZOLES AS INHIBITORS OF MAP KINASE
申请人:ELI LILLY AND COMPANY
公开号:EP1554272B1
公开(公告)日:2006-10-25
US7320995B2
申请人:——
公开号:US7320995B2
公开(公告)日:2008-01-22
Synthesis of Imidazole Based p38 MAP (Mitogen-Activated Protein) Kinase Inhibitors under Buffered Conditions
作者:Nicholas A. Magnus、William D. Diseroad、C. Richard Nevill、James P. Wepsiec
DOI:10.1021/op060042t
日期:2006.5.1
This article describes chemistry that was developed to give access to multigram quantities of imidazole 479754 and several related analogues for Eli Lilly's p38 MAPK program targeting therapies to address inflammation. The molecules of interest have an isopropyl sulfonyl group present on the 2-aminobenzimidazole heterocycyle that was found to be labile when heated in polar solvents and/or exposed to high or low pH. Due to this instability issue, the syntheses of the target molecules required optimizing Sonogashira reaction conditions, employing a buffered oxidative method to produce alpha-diones, developing buffered reaction conditions to generate imidazoles, and developing final recrystallization conditions.