Patent ID: 7566785

Claim:
A compound of the formula: or a pharmaceutically acceptable salt or stereoisomer thereof; wherein R 1 , R 2 taken together are selected from —NHC(═O)CH═CH—, and —CH═CHC(═O)NH—, R 3 is hydroxy and R 4 is hydrogen; R a is hydrogen, C 1-6 alkyl, or hydroxy; each of R b and R c is independently hydrogen, C 1-6 alkyl, or C 3-10 cycloalkyl, or R b and R c together with the nitrogen atom to which they are attached form a morpholinyl ring; R 6 is hydrogen, hydroxy, halo, C 1-4 alkoxy, C 1-4 alkyl, or C 1-4 haloalkyl; and each of R 7 , R 8 , R 9 , and R z is independently hydrogen or C 1-6 alkyl.