Patent ID: 7691902

Claim:
A compound of formula (I): or a pharmaceutically acceptable salt thereof, wherein: Each R 1 is independently an optionally substituted C 1-6 aliphatic, an optionally substituted aryl, an optionally substituted C 3-10 membered cycloaliphatic carboxy, amido, amino, halo, or hydroxy, provided that at least one R 1 is an optionally substituted aryl and said R 1 is attached to the 3- or 4-position of the phenyl ring; R 2 is hydrogen, an optionally substituted C 1-6 aliphatic, an optionally substituted C 3-6 cycloaliphatic, an optionally substituted phenyl, or an optionally substituted heteroaryl; Ring A is an optionally substituted cycloaliphatic R 4 is an optionally substituted benzo[d][1,3]dioxolyl ring; and n is 1, 2, 3, 4, or 5.