Patent ID: 7253166

Claim:
A compound of Formula I: in which: R 1 is chosen from —OR 4 , —R 5 and —NHR 6 ; wherein R 4 is chosen from C 6-10 aryl and C 5-10 heteroaryl; wherein the aryl or heteroaryl of R 4 is optionally substituted by 1 to 3 radicals selected from hydroxy, amino, C 1-6 alkyl and C 1-6 alkoxy; R 5 is chosen from C 4-8 heterocycloalkyl optionally substituted by 1 to 3 radicals independently chosen from hydroxy, amino, C 1-6 alkyl, C 1-6 alkoxy and —C(O)NR 7 R 8 ; wherein R 7 and R 8 are independently selected from hydrogen and C 1-6 alkyl; R 6 is chosen from and C 6-10 aryl R 2 is selected from the group consisting of hydrogen and C 1-6 alkyl; and R 3 is selected from the group consisting of hydroxy, amino and nitro; and the pharmaceutically acceptable salts thereof.