Patent ID: 7576103

Claim:
A compound of formula I: or a pharmaceutically acceptable salt thereof, wherein: m is from 0 to 3; p is from 1 to 3; q is 0, 1 or 2; Ar is optionally substituted aryl or optionally substituted heteroaryl; each R 1 is independently halo, alkyl, haloalkyl, heteroalkyl, cyano, —S(O) q R a , —C(═O)—NR b R c , —SO 2 —NR b R c , —N(R d )—C(═O)—R e , or —C(═O)—R e , where q is from 0 to 2, R a , R b , R c and R d each independently is hydrogen or alkyl, and R e is hydrogen, alkyl, alkoxy or hydroxy; R 2 is X is —O— or —NR 7 —; n is 2 or 3; R 3 and R 4 each independently is hydrogen or alkyl, or R 3 and R 4 together may form a —C(O)—; R 5 and R 6 each independently is hydrogen or alkyl, or R 5 and R 6 together with the nitrogen to which they are attached may form a five- or six-membered ring that optionally includes an additional heteroatom selected from O, N and S, or one of R 5 and R 6 and one of R 3 and R 4 together with the atoms to which they are attached may form a five- or six-membered ring that optionally includes an additional heteroatom selected from O, N and S; and R 7 is hydrogen or alkyl.