Abstract: A compound compound having the structure: or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate of said compound or pharmaceutically acceptable salt, wherein A, A? and A? are independently O, C?O, C—R? or N—R?, where R? and R? may independently be H, amino, —NR7COR6, COR6, —CONR7R8, C1-C6 alkyl, or hydroxy(C1-C6 alkyl), and R? may be present or absent, and is present where the rules of valency permit, and where not more than one of A, A? and A? is O or C?O; R0 and R are independently H, Br, Cl, F, or C1-C6 alkyl; R1 is H, C1-C6 alkyl, or hydroxy(C1-C6 alkyl); R2 is selected from the group consisting of H, C1-C6 alkyl, C1-C6 alkoxy, hydroxy(C1-C6 alkyl), phenyl(C1-C6 alkyl), formyl, heteroaryl, heterocyclic, —COR6, —OCOR6, —COOR6, —NR7COR6, —CONR7R8, and —(CH2)n—W, where W is cyano, hydroxy, C3-C8 cycloalkyl, —SO2NR7R8, and —SO2—R9, where R9 is C1-C6 alkyl, C3-C8 cycloalkyl, heteroaryl, or heterocyclic; wherein each of said alkyl, cycloalkyl, heterocyclic, or heteroaryl ma