Patent ID: 7241776

Claim:
A compound of formula (I) or a pharmaceutically acceptable salt or prodrug thereof, wherein R 1 is a bond or a chain selected from the group consisting of alkyl, alkenyl, and alkynyl, R 2 is selected from the group consisting of aryl and heteroaryl, wherein aryl and heteroaryl can be independently substituted with 0, 1, 2, or 3 alkenyl, alkyl, alkynyl, halo, haloalkyl, nitro, —C(O)—N—RaRb, —C(O)O—Ra, —C(O)—Ra, —N—RaRb, alkyl-N—RaRb, —O—Ra, —OC(O)—Ra, alkyl-O—Ra, —N—(Ra)—C(O)O—Rb, —N—(Ra)—C(O)N—RaRb, S—Ra, —S(O)—Ra, —S(O) 2 —Ra, S(O) 2 —RaRb, wherein Ra and Rb are independently selected from the group consisting of hydrogen, alkyl, haloalkyl, aryl and arylalkyl; R 3 is selected from the group consisting of alkyl and haloalkyl, R 4 is alkyl, and R 5 is selected from the group consisting of halogen, aryl, and heteroaryl, wherein aryl, and heteroaryl can be independently substituted with 0, 1, 2, 3 or 4 substituents independently selected from alkenyl, alkyl, alkynyl, cyano, halo, haloalkyl, nitro, ethylenedioxy, methylenedioxy, —C(O)NRaRb, —C(O)ORa; —C(O)Ra, —NRaRb, alkylNRaRb, —ORa, —OC(O)Ra, alkylORa, —N(Ra)C(O)ORb, —N(Ra)C(O)NRaRb, SRa, —S(O)Ra, —S(O) 2 Ra, S(O) 2 RaRb, wherein Ra and Rb are independently selected from the group consisting of hydrogen, alkyl, haloalkyl, aryl and arylalkyl; and R 6 and R 7 are independently selected from the group consisting of hydrogen and alkyl.