[EN] CYCLOHEXYLALANINE DERIVATIVES AS DIPEPTIDYL PEPTIDASE-IV INHIBITORS FOR THE TREATMENT OR PREVENTION OF DIABETES<br/>[FR] DERIVES DE LA CYCLOHEXYLALANINE UTILISES COMME INHIBITEURS DE LA DIPEPTIDYL PEPTIDASE-IV POUR LE TRAITEMENT OU LA PREVENTION DES DIABETES
申请人:MERCK & CO INC
公开号:WO2005116029A1
公开(公告)日:2005-12-08
The present invention is directed to novel cyclohexylalanine derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme ('DP-IV inhibitors') and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
para-selective C−Htrifluoromethylation of a class of arenes has not been achieved. In this study, we report a light-promoted 4,5-dichlorofluorescein (DCFS)-enabled para-selective C−Htrifluoromethylation of arylcarbamates using Langlois reagent. The preliminary mechanistic study revealed that the activated organic photocatalyst coordinated with the arylcarbamate led to para-selective C−H trifluoromethylation
Cyclohexylalanine Derivatives as Dipeptidyl Peptidase-IV Inhibitors for the Treatment or Prevention of Diabetes
申请人:Duffy L. Joseph
公开号:US20080027093A1
公开(公告)日:2008-01-31
The present invention is directed to novel cyclohexylalanine derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
A photochemical C−N coupling reaction of (hetero)aryl halides with amides using NiCl2-bipyridine complex as a pre-catalyst in the absence of an external photocatalyst is reported, allowing a broad array of aryl chlorides to be converted into the corresponding (hetero)arylamides.