Synthesis and cardiotonic activity of esters of 2-substituted 5-acetyl-1,6-dihydro-6-oxo-3-pyridinecarboxylic acids
摘要:
The synthesis of ethyl or methyl esters of 2-substituted 5-acetyl-1,6-dihydro-6-oxo-3-pyridinecarboxylic acids 2a-d, f and 5 by reaction of sodium acetoacetamide with ethyl or methyl 2-dimethylaminomethylene-3-oxoalkanoates and ethyl 2-ethoxymethylene-4,4,4-trifluoro-3-oxobutanoate, respectively, has been described. These esters routinely gave the corresponding carboxylic acids by alkaline hydrolysis followed by acidification. As milrinone analogues, the above compounds were tested on contractile activity and frequency rate of spontaneously beating atria and on contractile activity of electrically-driven left atrium from reserpine-treated guinea pigs. Among the tested compounds, ethyl 5-acetyl-1,6-dihydro-6-oxo-2-phenyl-3-pyridinecarboxylate was found to be more potent and more effective than milrinone as a positive inotropic agent, while only marginally affecting the frequency rate.
Design and synthesis of 6-oxo-1,6-dihydropyridines as CDK5 inhibitors
作者:Matthew R. Kaller、Wenge Zhong、Charles Henley、Ella Magal、Thomas Nguyen、David Powers、Robert M. Rzasa、Weiya Wang、Xiaoling Xiong、Mark H. Norman
DOI:10.1016/j.bmcl.2009.10.027
日期:2009.12
Cyclin-dependent kinase 5 (CDK5) is a serine-threonine protein kinase that plays a significant role in neuronal development. In association with p25, CDK5 abnormally phosphorylates a number of cellular targets involved in neurodegenerative disorders. Using active site homology and previous structure-activity relationships, a new series of potent CDK5 inhibitors was designed. This report describes the optimization of 6-oxo-1,6-dihydropyridines as CDK5 inhibitors. (C) 2009 Elsevier Ltd. All rights reserved.
2-OXOPYRIDIN-3-YL THIA(DI)AZOLE DERIVATIVES FOR USE IN THE TREATMENT OF CELL PROLIFERATION AND APOPTOSIS RELATED DISEASES
申请人:AMGEN INC.
公开号:EP1575947A1
公开(公告)日:2005-09-21
[EN] 2-OXOPYRIDIN-3-YL THIA (DI) AZOLE DERIVATES FOR USE IN THE TREATMENT OF CELL PROLIFERATION AND APOPTOSIS RELATED DISEASES<br/>[FR] DERIVES DE PYRIDE-2-ONE ET PROCEDES D'UTILISATION
申请人:AMGEN INC
公开号:WO2004060890A1
公开(公告)日:2004-07-22
Compounds of formula I are effective for treatment of diseases, such as cell proliferation or apoptosis mediated diseases. The invention encompasses novel compounds, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involvong stroke, cancer and the like.