Patent ID: 7951836

Claim:
A compound of formula I wherein R 1 is —OR 1′ , or is aryl, heteroaryl, or a nonaromatic group selected from oxetanyl, tetrahydrofuranyl, tetrahydropyranyl, azetidinyl, pyrrolidinyl, piperidinyl, piperazinyl, morpholinyl and thiomorpholinyl, wherein the aryl, heteroaryl, or nonaromatic group each is unsubstituted or substituted by lower alkyl or halogen; R 1′ is lower alkyl, lower alkyl substituted by halogen, or —(CH 2 ) o -cycloalkyl; R 2 is —S(O) 2 -lower alkyl, —S(O) 2 NH-lower alkyl, NO 2 or CN; R 3 is aryl or heteroaryl, each of which is unsubstituted or substituted by one to three substituents selected from the group consisting of lower alkyl, lower alkoxy, CN, NO 2 , halogen, lower alkyl substituted by halogen, lower alkoxy substituted by halogen, aryl and sulfonamide; X is a bond, —CH 2 —, —NH—, —CH 2 O— or —OCH 2 —; n is 1 m is 2; or m is 1 n is 2; and o is 0 or 1; or a pharmaceutically acceptable acid addition salt thereof.