Patent ID: 7351713

Claim:
A compound according to formula (I): or a pharmaceutically acceptable salt thereof, wherein R 1 is R 2 is optionally substituted C 1-10 alkyl, optionally substituted C 2-10 alkenyl, optionally substituted C 2-10 alkynyl, optionally substituted C 6-12 aryl or optionally substituted 3 to 10 membered heterocycle; R 3 is H, optionally substituted C 1-10 alkyl, optionally substituted C 2-10 alkenyl, optionally substituted C 2-10 alkynyl, or optionally substituted C 6-12 aryl; R 4 and R 5 are each independently H, optionally substituted C 1-10 alkyl, optionally substituted C 2-10 alkenyl, optionally substituted C 2-10 alkynyl, optionally substituted C 6-12 aryl, optionally substituted 3 to 10 membered heterocycle, optionally substituted C 6-12 aralkyl or optionally substituted 3 to 10 membered heteroaralkyl; R 6 and R″ 6 are each independently H, optionally substituted C 1-10 alkyl, optionally substituted C 2-10 alkenyl, or optionally substituted C 2-10 alkynyl, and R 7 is H, optionally substituted C 10 alkyl, optionally substituted C 2-10 alkenyl, optionally substituted C 2-10 alkynyl, optionally substituted C 6-12 aryl, optionally substituted 3 to 10 membered heterocycle, optionally substituted C 6-12 aralkyl or optionally substituted 3 to 10 membered heteroaralkyl, or R″ 6 and R 7 can be taken together to form an optionally substituted 3 to 10 membered heterocycle.