The present invention provides compounds of formula (I*):
their use as H
3
inhibitors, processes for their preparation, and pharmaceutical compositions thereof.
本发明提供了式(I*)的化合物:它们作为H3抑制剂的用途,其制备方法以及药物组合物。
New, simple and versatile synthesis of 4,6-disubstituted pyridazin-3(2H)-ones
A simple, two-step synthesis of 4,6-disubstituted pyridazin-3(2H)-ones starting from 2-diethoxyphosphoryl-4-oxoalkanoates and hydrazines is described. The intermediate 4-diethoxyphosphoryl-4,5-dihydropyridazin-3(2H)-ones obtained in this way are used in a Horner-Wadsworth-Emmons olefination of aldehydes to give a variety of disubstituted pyridazin-3(2H)-ones.
The present invention is directed to novel pyridazinone derivatives that mediate enzymatic activity. In particular, the compounds may be effective in the treatment of diseases or disease states related to the activity of the histamine H3 receptor, including, for example, neurodegenerative disorders, sleep/wake disorders, attention deficit hyperactivity disorder and cognition/cognitive disorders.
The present invention is directed to novel pyridazinone derivatives that mediate enzymatic activity. In particular, the compounds may be effective in the treatment of diseases or disease states related to the activity of the histamine H3 receptor, including, for example, neurodegenerative disorders, sleep/wake disorders, attention deficit hyperactivity disorder and cognition disorders.
Pyridizinone derivatives and the use thereof as H3 inhibitors
申请人:Cephalon, Inc.
公开号:US08247414B2
公开(公告)日:2012-08-21
The present invention is directed to novel pyridizinone derivatives that mediate enzymatic activity. In particular, the compounds may be effective in the treatment of diseases or disease states related to the activity of the histamine H3 receptor, including, for example, neurodegenerative disorders, sleep/wake disorders, attention deficit hyperactivity disorder and cognition.