The directamination of cyanohydrins with amines via a catalytic cyano-borrowing reaction was developed. The transformation features broad substrate scope, excellent functional group compatibility, and very mild and simple operations. Moreover, a titanium catalyst supported by quinine and (S)-BINOL ligands enabled an asymmetric cyano-borrowing reaction with moderate to high enantioselectivity.
Imidazolone and imidazoloidinone derivatives as 11b-HSD1 inhibitors
申请人:Hoffman-La Roche Inc.
公开号:US08129423B2
公开(公告)日:2012-03-06
Compounds of formula
as well as pharmaceutically acceptable salts and esters thereof, wherein R1 to R6 have the significance given in claim 1 can be used in the form of pharmaceutical compositions.
Imidazolone and imidazolidinone derivatives as 11B-HSD1 inhibitors for the treatment of diabetes
申请人:F. Hoffmann-La Roche AG
公开号:EP2308851A1
公开(公告)日:2011-04-13
Compounds of formula
as well as pharmaceutically acceptable salts and esters thereof, wherein R1 to R6 have the significance given in claim 1 can be used in the form of pharmaceutical compositions.