A compound of Formula I: ** Formula ** wherein: is phenyl, pyridyl, pyrimidyl, pyrazinyl or pyridazyl; R1 is Cl, -CN, H, F, OC (1-4) alkyl, OCHF2, ** Formula ** OCF3, C (1-4) alkyl, Br, I, or cyclopropyl; wherein said C (1-4) alkyl is optionally substituted with up to six fluorine atoms; R2 is F, Cl, -CN, H, O-C (1-4) alkyl, OCHF2, OCF3, cyclopropyl or C (1-4) alkyl; wherein said C (1-4) alkyl is optionally substituted with up to five fluorine atoms, and said cyclopropyl is optionally substituted with OH, CH3, CF3, and up to five fluorine atoms; or R1 and R2 can be taken together with their attached ring A to form a fused ring system selected from the group consisting of naphthalenyl, tetrahydronaphthalenyl, isoquinolinyl, quinolinyl, 2,3-dihydro-1H-indenyl, chromanyl, isochromanyl, and naphthyridinyl; wherein said naphthalenyl, tetrahydronaphthalenyl, isoquinolinyl, quinolinyl, 2,3-dihydro-1H-indenyl, chromanyl, isochromanyl, and naphthyridinyl may be optionally substituted with up to three substituents independently selected from the group consisting of F, OC (1-3) alkyl or C (1-3) alkyl wherein said OC (1-3) alkyl and C (1-3) alkyl is optionally substituted with up to five fluorine atoms (including CHF2, CH2F, CF3 and CH3; provided that R2 is not H if R1 is H; R3 is thiadiazolyl, oxadiazolyl, isoxadiazolyl, oxazolyl, isoxazolyl, triazolyl, tetrazolyl, 1,2,4-oxadiazol-5 (4H) -on-3-yl, pyridyl, thiazolyl, pyrimidyl, pyridazyl, pyrazyl, imidazolyl, pyrrolyl, furanyl, or phenyl; wherein said thiadiazolyl, oxadiazolyl, isoxadiazolyl, oxazolyl, isoxazolyl, triazolyl, pyridyl, thiazolyl, pyrimidyl, pyridazyl, pyrazyl, imidazolyl, pyrrolyl, R4, optionally substituted with phenyl and additionally optionally substituted with u n substituent selected from the group consisting of F, CH3, CF3, and cyclopropyl; R4 is H, C (1-6) alkylSO2 C (1-6) alkyl, C (O) NH2, C (1-6) alkyl, -CN, C (3-6) cycloalkyl, NH2, NH (C ( 1-6) alkyl), N (C (1-6) alkyl) 2, NHCO (C (1-6) alkyl), N (C (1