PYRIDAZINE DERIVATIVES, PHARMACEUTICAL COMPOSTIONS COMPRISING THEM, PROCESS FOR THEIR PREPARATION AND USE THEREOF IN THE PREPARATION OF MEDICAMENTS FOR THE TREATMENT AND PROPHYLAXIS OF DIABETES

摘要

Compounds of formula (I) as well as pharmaceutically acceptable salts and esters thereof, wherein R1 to R4 have the significance given in claim 1 can be used in the form of pharmaceutical compositions, as 11 beta-hydroxysteroid dehydrogenase type 1 (11 beta-HSD1) inhibitors.