Patent ID: 7084169

Claim:
A compound of the formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein: m is from 0 to 3; n is from 0 to 2; each R 1 is independently hydrogen, halo, alkyl, haloalkyl, hydroxy, heteroalkyl, nitro, alkoxy, cyano, —NR a R b , —S(O) s —R a , —C(═O)—NR a R b , —SO 2 —NR a R b , —N(R a )—C(═O)—R b , or —C(═O)—R a , where each of R a and R b is independently hydrogen or alkyl, or two of R 1 may form an alkylene or alkylene dioxy group; R 2 is aryl or heteroalkyl; R 3 is hydrogen or alkyl; and R 4 is of the formula: wherein: p is 2 or 3; and R 5 , R 6 , R 7 and R 8 each independently is hydrogen or alkyl, or one of R 5 and R 6 together with one of R 7 and R 8 and the atoms therebetween may form a heterocyclic ring of 4 to 7 members, or R 7 and R 8 together with their shared nitrogen may form a heterocyclic ring of 4 to 7 members; or one of R 7 and R 8 together with R 3 and the atoms therebetween may form a heterocyclic ring of 4 to 7 members.