The invention provides novel compounds having the general formula (I), wherein R1, R2, R3 and A are as described herein, compositions including the compounds and methods of using the compounds. These compounds are useful as inhibitors of hormone sensitive lipase (HSL) and may be used in the treatment of diabetes, metabolic syndrome, dyslipidemia, atherosclerosis, obesity, cardiovascular diseases, myocardial dysfunction, inflammation, non-alcoholic fatty liver disease and non-alcoholic steatohepatitis.L'invention concerne de nouveaux composés ayant la formule générale (I), dans laquelle R1, R2, R3 et A sont tels que décrits présentement, des compositions comprenant les composés et des procédés d'utilisation des composés.