Patent ID: 7803835

Claim:
A compound having the formula: wherein: R 1 is —OH, —OC 1 -C 8 alkyl, or NH 2 ; R 2 and R 3 are, independently, hydrogen, C 1 -C 8 alkyl, —CH 2 —C 3 -C 6 cycloalkyl, —CH 2 -pyridinyl, phenyl, or benzyl; R 4 is hydrogen, C 1 -C 8 alkyl, C 3 -C 6 cycloalkyl, —CH 2 —C 3 -C 6 cycloalkyl, phenyl, benzyl, heteroaryl, or —CH 2 -heteoraryl; X is wherein: R 5 is hydrogen, C 1 -C 8 alkyl, C 3 -C 6 cycloalkyl, —CH 2 —C 3 -C 6 cycloalkyl, phenyl, benzyl, heteroaryl, or —CH 2 -heteoraryl; R 6 is hydrogen, C 1 -C 8 alkyl, —(CH 2 ) n —CH═CH 2 , —(CH 2 ) n —CH═CH-alkyl, —(CH 2 ) n C≡CH, —(CH 2 ) n C≡CH-alkyl, aryl, (CH 2 ) n -aryl, heteroaryl, (CH 2 ) n -heteroaryl, —CO-aryl, —CO-heteroaryl, —CO-alkyl, —SO 2 -alkyl, —SO 2 -aryl, or —SO 2 -heteroaryl; R 7 is —O(CH 2 ) n -aryl or —O(CH 2 ) n -heteroaryl; R 8 and R 9 are, independently, hydrogen, halogen, C 1 -C 6 alkyl, C 1 -C 3 perfluoroalkyl, —O—C 1 -C 3 perfluoroalkyl, C 1 -C 3 alkoxy, —OH, —NH 2 or —NO 2 ; and n is an integer from 0 to 5; or a pharmaceutically acceptable salt form thereof.