Patent ID: 8486979

Claim:
A compound of formula (II): wherein Ar 2 is bicyclic heteroaryl selected from the group consisting of azaindolyl, benzimidazolyl, benzo[d][1,3]dioxolyl, benzofuranyl, benzoxadiazolyl, benzo[d]imidazolyl, benzo[d]imidazole-2(3H)-thione, benzoisoxazole, benzoisothiazole, benzooxazole, benzooxazolone, benzo[d][1,2,3]thiadiazolyl, 1,3-benzothiazolyl, benzothiophenyl, benzo[d][1,2,3]triazolyl, 2,2-difluorobenzo[d][1,3]dioxolyl, furopyridine, imidazopyridinyl, indolyl, indazolyl, isobenzofuran, isoindolyl, oxazolopyridine, pyrazolopyrimidinyl, pyrrolopyridinyl, thienopyridinyl, and [1,2,4]triazolopyridinyl; and Ar 3 is independently pyrazinyl, pyridazinyl, pyridinyl, pyrimidinyl, or triazinyl, substituted independently with 0, 1, 2, 3, or 4 substituents selected from the group consisting of alkoxy, alkoxycarbonyl, alkoxycarbonylamino, alkoxycarbonylaminoalkyl, alkyl, alkylamino, alkylcarbonyl, alkylsulfonyl, amido, amino, aminoalkyl, carboxy, dialkylamino, dialkylaminoalkyl, halo, haloalkyl, haloalkylcarbonyl, heteroaryl, heterocycle, hydroxy, hydroxyalkyl, cyano, nitro, oxo, sulfonamide and dialkylsulfonylformimidamide; or a pharmaceutically acceptable salt thereof.