Inverse electron demand diels-alder reactions of 5-nitropyrimidine with enamines. synthesis of 3-nitropyridine derivatives
作者:Antonius T.M. Marcelis、Henk C. Van Der Plas
DOI:10.1016/s0040-4020(01)80099-5
日期:1989.1
The reaction of cyclic and non-cyclic enamines with 5-nitropyrimidine has been studied. Many enamines react in an inverse electron-demand Diels-Alderreaction, leading to the formation of 3-nitropyridines. N,S-ketene acetals were also found to react with 5-nitropyrimidine. The mechanism of the reaction will be discussed.
Imidazole and imidazoline derivatives and uses thereof
申请人:Synaptic Pharmaceutical Corporation
公开号:US20020019390A1
公开(公告)日:2002-02-14
This invention is directed to novel imidazole and imidazoline derivatives which are selective agonists for cloned human &agr;
2
adrenergic receptors. This invention is also related to the use of these compounds for the treatment of any disease where modulation of the &agr;
2
receptors may be useful. The invention further provides for a pharmaceutical composition comprising a therapeutically effective amount of the above-defined compounds and a pharmaceutically acceptable carrier.
This invention is directed to novel imidazole and imidazoline derivatives which are selective agonists for cloned human &agr;2 adrenergic receptors. This invention is also related to the use of these compounds for the treatment of any disease where modulation of the &agr;2 receptors may be useful. The invention further provides for a pharmaceutical composition comprising a therapeutically effective amount of the above-defined compounds and a pharmaceutically acceptable carrier.