strategy for aromatic trifluoromethylation by converting amino into trifluoromethyl groups via a Sandmeyer-type reaction is reported. The transformation involves diazotization of the aromatic amines with tert-butyl nitrite and hydrochloric acid to form aryldiazonium chlorides, followed by trifluoromethylation with trifluoromethylsilver at low temperature. Various readily available aromatic amines are
ANTHELMINTIC COMPOUNDS AND COMPOSITIONS AND METHOD OF USING THEREOF
申请人:Meng Charles Q.
公开号:US20140142114A1
公开(公告)日:2014-05-22
The present invention relates to novel anthelmintic compounds of formula (I) below:
wherein
Y and Z are independently a bicyclic carbocyclic or a bicyclic heterocyclic group, or one of Y or Z is a bicyclic carbocyclic or a bicyclic heterocyclic group and the other of Y or Z is alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, heterocyclyl or heteroaryl, and variables X
1
, X
2
, X
3
, X
4
, X
5
, X
6
, X
7
and X
8
are as defined herein. The invention also provides for veterinary compositions comprising the anthelmintic compounds of the invention, and their uses for the treatment and prevention of parasitic infections in animals.
Amides of aminoalkyl-substituted azetidines, pyrrolidines, piperidines and azepanes
申请人:——
公开号:US20030195190A1
公开(公告)日:2003-10-16
Novel amides of aminoalkyl-substituted azetidines, pyrrolidines, piperidines and azepanes, use of these compounds as pharmaceutical compositions, pharmaceutical compositions comprising the compounds, and a method of treatment employing these compounds and compositions. The compounds show a high and selective binding affinity to the histamine H3 receptor indicating histamine H3 receptor antagonistic, inverse agonistic or agonistic activity. As a result, the compounds are useful for the treatment of diseases and disorders related to the histamine H3 receptor.
[EN] AMIDES OF AMINOALKYL-SUBSTITUTED AZETIDINES, PYRROLIDINES, PIPERIDINES AND AZEPANES<br/>[FR] AMIDES D'AZETIDINES, DE PYRROLIDINES, DE PIPERIDINES ET D'AZEPANES AMINOALKYLE SUBSTITUES
申请人:NOVO NORDISK AS
公开号:WO2003064411A1
公开(公告)日:2003-08-07
Novel amides of aminoalkyl-substituted azetidines, pyrrolidines, piperidines and azepanes, use of these compounds as pharmaceutical compositions, pharmaceutical compositions comprising the compounds, and a method of treatment employing these compounds and compositions. The compounds show a high and selective binding affinity to the histamine H3 receptor indicating histamine H3 receptor antagonistic, inverse agonistic or agonistic activity. As a result, the compounds are useful for the treatment of diseases and disorders related to the histamine H3 receptor.
<i>n</i>Bu<sub>4</sub>N<sup>+</sup>[Ag<sup>I</sup>(CF<sub>3</sub>)<sub>2</sub>]<sup>−</sup>: Trifluoromethylated Argentate Derived from Fluoroform and Its Reaction with (Hetero)Aryl Diazonium Salts
argentate nBu4N+[Ag(CF3)2]− 1 from fluoroform was described. The complex was stable in the solid state and in solution under an inert atmosphere. Treatment of a variety of (hetero)aryl diazonium tetrafluoroborates with nBu4N+[Ag(CF3)2]− 1 generated trifluoromethylated (hetero)arenes in good to excellent yields. Preliminary experiments were conducted, and a reasonable mechanism of the reaction was proposed
描述了从氟仿制备明确的三氟甲基化银酸盐n Bu 4 N + [Ag(CF 3 ) 2 ] - 1 。该配合物在惰性气氛下在固态和溶液中均稳定。用n Bu 4 N + [Ag(CF 3 ) 2 ] - 1处理各种(杂)芳基重氮四氟硼酸盐,生成三氟甲基化(杂)芳烃,收率良好至优异。进行了初步实验,提出了合理的反应机理。