在本文中,我们报告了在三卤代脱氮嘌呤的Suzuki交叉偶联反应中有机三氟硼酸钾盐作为亲核有机硼试剂的用途。通过使用该方案以良好至优异的产率合成了区域异构的C-2-取代的咪唑并[4,5- b ]吡啶类似物。芳基和杂芳基三氟硼酸酯容易反应,以高收率得到偶联产物,而三氟硼酸烷基酯则反应性较低。发现乙酸四丁铵的利用在提高交叉偶联过程的反应速率中起重要作用。另外,在硼酸和有机三氟硼酸钾盐之间进行了比较研究。
The present invention is directed to compounds of formula I:
or a pharmaceutically acceptable salt thereof, wherein the substituents are as defined herein.
本发明涉及以下化合物的公式I:或其药用可接受的盐,其中取代基如本文所定义。
AZABENZIMIDAZOLE COMPOUNDS AS INHIBITORS OF PDE4 ISOZYMES FOR THE TREATMENT OF CNS AND OTHER DISORDERS
申请人:Pfizer Inc.
公开号:EP2958915B1
公开(公告)日:2017-07-05
US9120788B2
申请人:——
公开号:US9120788B2
公开(公告)日:2015-09-01
US9815832B2
申请人:——
公开号:US9815832B2
公开(公告)日:2017-11-14
[EN] AZABENZIMIDAZOLE COMPOUNDS AS INHIBITORS OF PDE4 ISOZYMES FOR THE TREATMENT OF CNS AND OTHER DISORDERS<br/>[FR] COMPOSÉS D'AZABENZIMIDAZOLE EN TANT QU'INHIBITEURS D'ISOZYMES PDE4 POUR LE TRAITEMENT DE TROUBLES DU SNC ET D'AUTRES AFFECTIONS
申请人:PFIZER
公开号:WO2014128585A1
公开(公告)日:2014-08-28
The present invention is directed to compounds of formula (I): or a pharmaceutically acceptable salt thereof, wherein the substituents are as defined 5 herein. The compounds of formula I are useful as inhibitors of PDE4 for the treatment of CNS and other disorders.