The invention provides novel compounds having the general formula (I) wherein R1, R2 and n are as described herein, compositions including the compounds and methods of using the compounds. The compounds are useful as inhibitors of hormone sensitive lipase (HSL) for the treatment of diabetes, metabolic syndrome and obesity.본 발명은 하기 화학식 (I)을 갖는 신규 화합물로서,R1, R2 및 n이 본 명세서에 기술된 바와 같은 화합물, 상기 화합물을 포함하는 조성물 및 화합물을 사용하는 방법을 제공한다.