Patent ID: 8124759

Claim:
A compound having Formula I or a therapeutically acceptable salt thereof, wherein A 1 is C(O)NHR 1 ; B 1 and C 1 are independently H; wherein R 1 is R 2 or R 3 ; R 2 is phenyl; R 3 is heteroaryl; wherein R 2 and R 3 are substituted with NHC(O)R 30 , NHC(O)NHR 30 , or alkyl which is substituted with C(O)NHR 35 or NHC(O)NHR 35 ; R 30 is R 31 , R 32 or R 33 ; R 31 is phenyl; R 32 is heteroaryl; R 33 is cycloalkyl; R 35 is R 36 or R 37 ; R 36 is phenyl; R 37 is heteroaryl; wherein the moieties represented by R 31 and R 36 are independently unsubstituted or substituted with one or two of independently selected F, Cl, Br, I, CF 3 , OCF 2 , R 45 , or OR 45 ; R 45 is alkyl which is unsubstituted or substituted with R 50 , F, Cl, Br, I, or OH; and R 50 is heterocycloalkyl.