Patent ID: 7820654

Claim:
A compound having the formula: or a salt thereof; wherein: R 4 is selected from a substituted or an unsubstituted heterocyclyl comprising at least one heteroatom or heterogroup selected from —O—, —NH—, —S—, or, any of which having up to 10 carbon atoms; n and m are independently an integer from 0 to 3, inclusive; R 11 and R 12 , in each occurrence, are selected independently from: 1) an alkyl, an alkoxy, a haloalkyl, a haloalkoxy, —COR 9 , —CONR 8 2 , —CO 2 R 8 , —SO 2 R 9 , —SR 8 , —NHSO 2 R 9 , or —SO 2 NR 8 2 , any of which having up to 10 carbon atoms; or 2) halogen, hydroxyl, or —OCH 2 O—; and R 4 is optionally substituted with at least one group independently selected from: 1) an alkyl, —COR 9 , —CO 2 R 8 , —CONR 8 2 , —SO 2 R 9 , or —SO 2 NR 10 2 , any of which having up to 10 carbon atoms; or 2) hydroxyl; R 8 , in each occurrence, is selected independently from: 1) an alkyl, a haloalkyl, or an aryl having up to 6 carbon atoms; or 2) hydrogen; R 9 , in each occurrence, is selected independently from an alkyl, a haloalkyl, an aryl, or a heterocyclyl or a heteroaryl comprising at least one heteroatom selected from —O— or —N—, any of which having up to 10 carbon atoms; and R 10 , in each occurrence, is selected independently from: 1) an alkyl, an aryl, or a heterocyclyl comprising at least one heteroatom selected from —O— or —N—, any of which having up to 10 carbon atoms; or 2) hydrogen.