Patent ID: 8916601

Claim:
A compound or salt thereof, of formula (IIIa) or (IIIb): where R 1 is selected from the group consisting of substituted or unsubstituted C 2-8 alkyl, substituted or unsubstituted C 1-8 alkoxy, substituted or unsubstituted C 1-8 alkylamino, and substituted or unsubstituted C 3-10 heterocyclyl; R 2 is H, F, Cl, or substituted or unsubstituted C 1-8 alkoxy; or R 1 and R 2 together with the carbon atoms to which they are attached form a non-aromatic carbocyclic ring or a heterocyclic ring; R 3 is H, substituted or unsubstituted C 1-8 alkyl, substituted or unsubstituted C 1-8 alkoxy, or halo; R 4 is H or F; R 5 is H, F, Cl, or —CH 3 ; R 6 is H, halo, —CN, —CO 2 R a , —CONH 2 , —NH 2 , substituted or unsubstituted C 1-8 aminoalkyl, substituted or unsubstituted C 1-8 alkyl, or substituted or unsubstituted C 1-8 alkoxy; R a is H or substituted or unsubstituted C 1-8 alkyl; or where R 5 and R 6 together with the carbon atoms to which they are attached form a carbocyclic ring; each R 8 is independently selected from the group consisting of H, halo, —CN, —OH, oxo, substituted or unsubstituted C 1-8 alkyl, substituted or unsubstituted C 1-8 alkoxy, and —NR 20 R 21 , substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, and substituted or unsubstituted heterocyclyl; R 20 and R 21 are each independently H, or substituted or unsubstituted C 1-8 alkyl; and n is 0, 1, 2 or 3.