Patent ID: 6933308

Claim:
A compound of Formula I or a pharmaceutically acceptable salt thereof wherein R 1 is C 1-6 alkyl, C 3-7 cycloalkyl, —(CH 2 ) 1-4 C 3-7 cycloalkyl, —(CH 2 ) 2-4 N(C 1-6 alkyl) 2 , —(CH 2 ) 2-4 OC 1-6 alkyl, R 2 is hydrogen, C 1-6 alkyl, or —(CH 2 ) 2-4 OC 1-6 alkyl; or where R 1 and R 2 taken together are —CH 2 CH 2 XCH 2 CH 2 —, where X is a chemical bond, CH 2 , CHOH, NH, NCH 3 , NCOCH 3 , O, or S; R 3 is hydrogen or hydroxy, provided that where R 3 is hydroxy, m is not 0; R 4 is hydrogen, C 1-6 alkyl, hydroxymethyl, or trifluoromethyl; R 5 is halogen, C 1-6 alkyl, C 1-2 perfluoroalkyl, C 1-6 alkoxy, C 1-2 perfluoroalkoxy, —N(R 4 ) 2 , N-morpholinyl, or pyridyl; R 6 is hydrogen, halogen, or C 1-6 alkoxy; m is 0 or 1.