Patent ID: 6908935

Claim:
A compound of formula (I): or a pharmaceutically acceptable salt thereof, wherein: R 1 is aryl, substituted aryl, heterocyclyl, substituted heterocyclyl, cycloalkyl, or substituted cycloalkyl; R 2 is alkyl or haloalkyl; R 3 is H, alkyl, or haloalkyl; R 4 is H, alkyl, or haloalkyl; each R 5 present is independently alkyl, substituted alkyl, alkoxy, substituted alkoxy, halogen, —C(═O)OH, —CN, —NR d S(═O) m R d , —NR d C(═O)NR d R d , —NR d S(═O) m NR d R d , or —NR d C(═O)R d ; R 6 is aryl, substituted aryl, heterocyclyl, substituted heterocyclyl, cycloalkyl, or substituted cycloalkyl; each R a is, independently, H, alkyl or haloalkyl; each R b is, independently, aryl, aralkyl, heterocyclyl, or heterocyclylalkyl, each of which may be unsubstituted or substituted by up to 3 substituents selected from the group consisting of alkyl, halogen, haloalkyl, alkoxy, cyano, and nitro; each R c is, independently, alkyl, haloalkyl, phenyl or benzyl, each of which may be substituted or unsubstituted; each R d is, independently, H, alkyl, aryl, aralkyl, heterocyclyl, or heterocyclylalkyl wherein the alkyl, aryl, aralkyl, heterocyclyl, and heterocyclylalkyl are substituted by 0, 1, 2, 3 or 4 substituents selected from alkyl, halogen, haloalkyl, alkoxy, cyano, nitro, R b , —C(═O)R c , —OR b , —NR a R a , —NR a R b , —C(═O)OR c , —C(═O)NR a R a , —OC(═O)R c , —NR a C(═O)R c , —NR a S(═O) n R c and —S(═O) n NR a R a ; m is 1 or 2; n is 0, 1 or 2; and p is 0, 1, 2, 3, or 4, provided that if R 2 is methyl, p is 0, and R 6 is unsubstituted phenyl, then R 1 is not 2,4-dihalophenyl, 2,4-dimethylphenyl, 2,4-diethylphenyl, 2,4,6-trihalophenyl, or 2,3,4-trihalophenyl.