2-Amino-imidazo[4,5-d]pyridazin-4-ones, their preparation and their use as pharmaceutical compositions
申请人:Eckhardt Matthias
公开号:US20050234235A1
公开(公告)日:2005-10-20
The present invention relates to 2-amino-imidazo[4,5-d]pyridazin-4-ones and 2-amino-imidazo[4,5-c]pyridin-4-ones of general formula
wherein R
1
to R
4
and X are defined as in claims
1
to
6
, the tautomers, the enantiomers, the diastereomers, the mixtures thereof and the salts thereof, which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
本发明涉及一般公式中R1至R4和X如索权1至6中定义的2-氨基咪唑并[4,5-d]吡啶并[4,5-c]吡啶-4-酮以及其互变异构体、对映异构体、非对映异构体、其混合物和盐,具有有价值的药理特性,特别是对酶二肽基肽酶-IV(DPP-IV)的抑制作用。