Patent ID: 8383615

Claim:
A compound of the formula (I) wherein: Ar 1 is chosen from carbocycle, heterocyclyl and heteroaryl each optionally substituted by 1-3 C 1-5 alkyl which is optionally substituted with halogens, C 1-5 alkoxy, hydroxyl, CN, halogen, NO 2 , —S(O) m —C 1-5 alkyl, —CO 2 —C 1-5 alkyl, —NH(C 1-5 alkyl)—CO 2 —C 1-10 alkyl, —C(O)—NH(C 1-5 alkyl), —C(O)—N(C 1-5 alkyl) 2 , —NH(C 1-5 alkyl), —N(C 1-5 alkyl)-C(O)—C 1-10 alkyl, —N(C 1-5 alkyl)-S(O) m —C 1-10 alkyl, carbocycle or heterocyclyl; Ar 2 is chosen from carbocycle, heterocyclyl and heteroaryl each optionally substituted by 1-3 C 1-10 alkyl which is optionally substituted with halogens, C 3-10 cycloalkyl, carbocycle, C 1-10 alkylcarbocycle, heteroaryl, CN or halogen, wherein the C 1-10 alkyl and carbocycle may be additionally optionally substituted by halogen, hydroxyl or C 1-5 alkoxy; with the proviso that Ar 1 and Ar 2 cannot simultaneously be unsubstituted phenyl; L 1 is a bond; L 2 is a bond; R 1 is chosen from hydrogen, oxo (═O) and OH; m is 0, 1 or 2; or a pharmaceutically acceptable salt thereof.