Patent ID: 8119655

Claim:
A compound consisting of a formula: or pharmaceutically acceptable salts thereof, wherein R 4 is selected from the group consisting of (1) hydrogen (2) halo and (3) (C 1-5 )alkyl; R 6 is selected from the group consisting of (1) hydrogen (2) halo (3) alkoxy and (4) (C 1-5 )alkyl; R 12 is selected from the group consisting of (1) hydrogen, (2) (C 1-10 )alkyl optionally substituted with one or more substituents selected from the group consisting of halo; cyano; hydroxy; (C 1-10 )alkoxy; amino; (C 1-10 )alkylamino; di-(C 1-10 ) alkylamino; and hetero(C 3-12 )cycloalkyl optionally substituted by a (C 1-10 )alkyl (3) hetero(C 3-12 )cycloalkyl optionally substituted with one or more substituents selected from the group consisting of halo; cyano; hydroxy; (C 1-10 )alkyl; (C 1-10 )alkoxy; amino (C 1-10 )alkylamino and di-(C 1-10 )alkylamino and (4) heteroaryl selected from the group consisting of furyl, imidazoyl, isothiazolyl, isoxazolyl, oxadiazolyl, oxazolyl, 1,2,3-oxadiazoly, pyrazinyl, pyrazolyl, pyridazyl, pyridyl, pyrimidyl, thiazolyl, 1,3,4-thiadiazolyl, triazolyl, and tetrazolyl; n is selected from the group consisting of 0, 1, 2, 3, 4 and 5; R 15 is selected from the group consisting of halo, cyano, hydroxy, amino, (C 1-10 )alkyl, —OR 22 , —C(O)—R 22 , —NR 23 —C(O)—R 22 , —C(O)—NR 23 —R 22 , —SO 2 —R 22 , —NR 23 —SO 2 —R 22 , and —SO 2 —NR 23 R 24 ; R 22 is selected from the group consisting of (C 1-10 )alkyl and (C 3-12 )cycloalkyl; R 23 is selected from the group consisting of hydrogen and (C 1-10 )alkyl; and R 24 is selected from the group consisting of hydrogen, (C 1-10 )alkyl, and (C 3-12 )cycloalkyl.