Facile CuI-Catalyzed Arylation of Azoles and Amides Using Simple Enaminones as Efficient Ligands
作者:Cuirong Sun、Cungui Cheng、Gonglei Sun、Jieping Wan
DOI:10.1055/s-0029-1217958
日期:2009.10
found to be an excellent ligand for copper-catalyzed N-arylation of azoles and amides with aryl halides under mild conditions. The reaction took place at 82 °C in MeCN with broad functional-group compatibility. A combination of the ligand and CuI proved to be an efficient catalytic system to promote the coupling reactions of aryl halides with azoles and amides.
Amino Heteroaryl Compounds as Beta-Secretase Modulators and Methods of Use
申请人:Paras Nick A.
公开号:US20130040931A1
公开(公告)日:2013-02-14
The present invention comprises a new class of compounds useful for the modulation of Beta-secretase enzyme activity and for the treatment of Beta-secretase mediated diseases, including Alzheimer's disease (AD) and related conditions. In one embodiment, the compounds have a general Formula (I); wherein ring A, B
1
, B
2
, B
3
, L, R
1
, R
2
, ring Z, m and n of Formula I are defined herein. The invention also includes use of these compounds in pharmaceutical compositions for treatment, prophylactic or therapeutic, of disorders and conditions related to the activity of beta-secretase protein. Such disorders include, for example, Alzheimer's Disease (AD), cognitive deficits, cognitive impairment, schizophrenia and other central nervous system conditions related to and/or caused by the formation and/or deposition of plaque on the brain. The invention also comprises further embodiments of Formula (I), intermediates and processes useful for the preparation of compounds of Formula (I).