Patent ID: 7732432

Claim:
A compound represented by Formula I or a pharmaceutically acceptable salt thereof, wherein: R 1 is —C(O)—R 5 ; R 2 is —O—C(O)—N(R 3 )(R 4 ), R 3 , R 6 , and R 7 are each independently selected from the group consisting of (1) hydrogen, and (2) C 1-3 alkyl; R 4 is selected from the group consisting of (1) C 1-10 alkyl, (2) C 2-6 alkenyl, (3) aryl, wherein aryl is selected from the group consisting of phenyl and naphthyl, (4) heteroaryl, wherein the heteroaryl is selected from the group consisting of pyridyl, furanyl, thienyl and imidazoyl, (5) C 1-6 alkyl-aryl, wherein aryl is selected from the group consisting of phenyl and naphthyl, (6) —C 1-6 alkyl-heteroaryl, wherein the heteroaryl is selected from the group consisting of pyridyl, furanyl, thienyl and imidazoyl, wherein choices (1) and (2) and the alkyl portion of choices (5) and (6) are optionally mono-di- or tri-substituted with substituents independently selected from the group consisting of —OH, —OCH 3 , —OCF 3 , —COCH 3 , —CO 2 CH 3 , —CONH 2 , —CN, —SO 2 CH 3 , —SO 2 CH 3 , —SO 2 NH 2 , F, Cl, Br, and —CF 3 and wherein choices (3) and (4) and the aryl and heteroaryl portion of choices (5) and (6) are optionally mono- or di-substituted with substituents independently selected from the group consisting of —OH, —OCH 3 , —OCF 3 , —COCH 3 , —CO 2 CH 3 , —CONH 2 , —CN, —SO 2 CH 3 , —SO 2 CH 3 , —SO 2 NH 2 , F, Cl, Br, and —CF 3 ; or R3 and R4 are joined so that together with the nitrogen atom to which they are attached is formed a ring of 5, 6, 7 or 8 carbon atoms, the ring being optionally substituted with —C 1-6 alkyl or —C 1-6 alkenyl; R 5 is each independently selected from the group consisting of (1) hydrogen, (2) C 1-6 alkyl, (3) C 1-6 alkyl, substituted with hydroxy, (4) C 1-6 alkyl, mono or di-substituted with halo, (5) —C 1-6 alkyl-O—C(O)—C 1-4 alkyl, (6) —C 1-6 alkyl-O—C(O)—C 1-4 alkyl, optionally mono or di-substituted with halo, hydroxy or methyl; (7) —C 1-6 alkyl-S(O) n —C 1-4 alkyl, optionally mono or di-substituted with halo, hydroxy or methyl; and (8) C 2-6 alkenyl, wherein n is 0, 1 or 2; R 8 halo, and R 9 is selected from the group consisting of (1) hydrogen, (2) halo, (3) hydroxy, (4) C 1-6 alkyl, (5) C 2-6 alkenyl, and (6) phenyl, wherein choices (4), (5) and (6) are optionally mono- or di-substituted with substituents independently selected from —OH, —OCH 3 , —OCF 3 , —COCH 3 , —CO 2 CH 3 , —CONH 2 , —CN, —SO 2 CH 3 ,—SO 2 CH 3 , —SO 2 NH 2 , F, Cl, Br, and —CF 3 .