Patent ID: 8193352

Claim:
A compound of formula VII: or a pharmaceutically acceptable salt thereof, wherein: V is CH or CF; Ring C is a 6-membered heteroaryl ring having 1 nitrogen, wherein: Ring C is substituted with 1-3 groups selected from R 6 ; each R 6 is independently selected from OR 7 or halogen; and R 7 is C 1-4 aliphatic; or Ring C is an unsubstituted 6-membered heteroaryl ring having 1 nitrogen; or wherein V is nitrogen; Ring C is a 6-membered heteroaryl ring having 2 nitrogens, wherein: Ring C is substituted with 1-3 groups selected from R 6 ; each R 6 is independently selected from OR 7 or halogen; and R 7 is C 1-4 aliphatic; or Ring C is an unsubstituted 6-membered heteroaryl ring having 2 nitrogens; R 3 is hydrogen or C 1-4 aliphatic, wherein: when R 3 is C 1-4 aliphatic, R 3 is substituted with 0-3 groups independently selected from OH, R 5 , or OR 5 ; wherein: R 5 is C 1-3 aliphatic, wherein: two R 5 aliphatic groups may be optionally taken together with the carbon to which they are bound to form a C 3-4 cycloalkyl ring; provided that if R 3 is hydrogen, then V is not nitrogen or CH; R 4 is a C 1-3 aliphatic group.