Discovery of Aminoquinazolines as Potent, Orally Bioavailable Inhibitors of Lck: Synthesis, SAR, and in Vivo Anti-Inflammatory Activity
摘要:
The lymphocyte-specific kinase (Lck) is a cytoplasmic tyrosine kinase of the Src family expressed in T cells and natural killer (NK) cells. Genetic evidence in both mice and humans demonstrates that Lck kinase activity is critical for signaling mediated by the T cell receptor (TCR), which leads to normal T cell development and activation. Selective inhibition of Lck is expected to offer a new therapy for the treatment of T-cell-mediated autoimmune and inflammatory disease. Screening of our kinase-preferred collection identified aminoquinazoline 1 as a potent, nonselective inhibitor of Lck and T cell proliferation. In this report, we describe the synthesis and structure-activity relationships of a series of novel aminoquinazolines possessing in vitro mechanism-based potency. Optimized, orally bioavailable compounds 32 and 47 exhibit anti-inflammatory activity (ED50 of 22 and 11 mg/kg, respectively) in the anti-CD3-induced production of interleukin-2 (IL-2) in mice.
Discovery of Aminoquinazolines as Potent, Orally Bioavailable Inhibitors of Lck: Synthesis, SAR, and in Vivo Anti-Inflammatory Activity
摘要:
The lymphocyte-specific kinase (Lck) is a cytoplasmic tyrosine kinase of the Src family expressed in T cells and natural killer (NK) cells. Genetic evidence in both mice and humans demonstrates that Lck kinase activity is critical for signaling mediated by the T cell receptor (TCR), which leads to normal T cell development and activation. Selective inhibition of Lck is expected to offer a new therapy for the treatment of T-cell-mediated autoimmune and inflammatory disease. Screening of our kinase-preferred collection identified aminoquinazoline 1 as a potent, nonselective inhibitor of Lck and T cell proliferation. In this report, we describe the synthesis and structure-activity relationships of a series of novel aminoquinazolines possessing in vitro mechanism-based potency. Optimized, orally bioavailable compounds 32 and 47 exhibit anti-inflammatory activity (ED50 of 22 and 11 mg/kg, respectively) in the anti-CD3-induced production of interleukin-2 (IL-2) in mice.
Aryl nitrogen-containing bicyclic compounds and methods of use
申请人:Patel F. Vinod
公开号:US20070054916A1
公开(公告)日:2007-03-08
The present invention comprises a new class of compounds useful for the prophylaxis and treatment of protein kinase mediated diseases, including inflammation, cancer and related conditions. The compounds have a general Formula I
wherein A
1
, A
2
, A
3
, B, R
1
, R
2
, R
3
and R
4
are defined herein. Accordingly, the invention also comprises pharmaceutical compositions comprising the compounds of the invention, methods for the prophylaxis and treatment of kinase mediated diseases using the compounds and compositions of the invention, and intermediates and processes useful for the preparation of compounds of the invention.
Discovery of Aminoquinazolines as Potent, Orally Bioavailable Inhibitors of Lck: Synthesis, SAR, and in Vivo Anti-Inflammatory Activity
作者:Erin F. DiMauro、John Newcomb、Joseph J. Nunes、Jean E. Bemis、Christina Boucher、John L. Buchanan、William H. Buckner、Victor J. Cee、Lilly Chai、Holly L. Deak、Linda F. Epstein、Ted Faust、Paul Gallant、Stephanie D. Geuns-Meyer、Anu Gore、Yan Gu、Brad Henkle、Brian L. Hodous、Faye Hsieh、Xin Huang、Joseph L. Kim、Josie H. Lee、Matthew W. Martin、Craig E. Masse、David C. McGowan、Daniela Metz、Deanna Mohn、Kurt A. Morgenstern、Antonio Oliveira-dos-Santos、Vinod F. Patel、David Powers、Paul E. Rose、Stephen Schneider、Susan A. Tomlinson、Yan-Yan Tudor、Susan M. Turci、Andrew A. Welcher、Ryan D. White、Huilin Zhao、Li Zhu、Xiaotian Zhu
DOI:10.1021/jm0605482
日期:2006.9.1
The lymphocyte-specific kinase (Lck) is a cytoplasmic tyrosine kinase of the Src family expressed in T cells and natural killer (NK) cells. Genetic evidence in both mice and humans demonstrates that Lck kinase activity is critical for signaling mediated by the T cell receptor (TCR), which leads to normal T cell development and activation. Selective inhibition of Lck is expected to offer a new therapy for the treatment of T-cell-mediated autoimmune and inflammatory disease. Screening of our kinase-preferred collection identified aminoquinazoline 1 as a potent, nonselective inhibitor of Lck and T cell proliferation. In this report, we describe the synthesis and structure-activity relationships of a series of novel aminoquinazolines possessing in vitro mechanism-based potency. Optimized, orally bioavailable compounds 32 and 47 exhibit anti-inflammatory activity (ED50 of 22 and 11 mg/kg, respectively) in the anti-CD3-induced production of interleukin-2 (IL-2) in mice.