A compound of the formula I ** Formula ** wherein R1 is (i) (C1-C3) alkyl optionally substituted with cyano, -C (O) NH2, or hydroxy, or (ii) -X1NHC (O) OR1a, where X1 is (C1-C4) alkylene optionally substituted with 1 to 3 groups, each independently selected from halo, (C1-C4) alkyl, or halogen-substituted (C1-C4) alkyl and R1a is H, (C1 -C4), or (C1-C4) alkyl substituted with halogen； R2 is H or halogen； R3 is H, halogen, (C1-C4) alkoxy, (C1-C4) alkyl, halogen-substituted (C1-C4) alkoxy, or halogen-substituted (C1-C4) alkyl； R4 is halogen, H, or (C1-C4) alkyl； R5 is (C1-C6) alkyl, (C3-C6) cycloalkyl, branched (C3-C8) alkyl, halogen-substituted (C1-C6) alkyl, or halogen-substituted branched (C3-C8) alkyl； R6 is H, (C1-C4) alkyl, or halogen； and R7 is H, (C1-C6) alkyl, (C3-C6) cycloalkyl, (C3-C6) cycloalkyl, branched (C3-C8) alkyl, or phenyl, wherein said phenyl is optionally substituted with 1 to 3 substituents selected from halogen, (C1-C4) alkyl or (C1-C4) alkyl substituted with halogen； or a pharmaceutically acceptable salt thereof. wherein each cycloalkyl is saturated or partially unsaturated, monocyclic, fused bicyclic or bridged polycyclic.Un compuesto de la fórmula I**Fórmula** en donde R1 es (i) alquilo (C1-C3) opcionalmente sustituido con ciano, -C(O)NH2, o hidroxi, o (ii) -X1NHC(O)OR1a, donde X1 es alquileno (C1-C4) opcionalmente sustituido con 1 a 3 grupos, seleccionado cada uno independientemente de entre halo, alquilo (C1-C4), o alquilo (C1-C4) sustituido con halógeno y R1a es H, alquilo (C1-C4), o alquilo (C1-C4) sustituido con halógeno； R2 es H o halógeno； R3 es H, halógeno, alcoxi (C1-C4), alquilo (C1-C4), alcoxi (C1-C4) sustituido con halógeno, o alquilo (C1-C4) sustituido con halógeno； R4 es halógeno, H, o alquilo (C1-C4)； R5 es alquilo (C1-C6), cicloalquilo (C3-C6), alquilo (C3-C8) ramificado, alquilo (C1-C6) sustituido con halógeno, o alquilo (C3-C8) ramificado sustituido con halógeno； R6 es H, alquilo (C1-C4), o halógeno； y R7 es H, alquilo (C1-C
