Patent ID: 8575127

Claim:
A compound of formula I where R 2 and R 2 ′ are, independently, —H, —F, —Cl, —Br, —I, —R, —OR, —SR, —NHR, —OCOR, —SCOR, or —NHCOR; R 6 and R 6′ are, independently, —H, —R, or —COR, provided that R 2 and R 6 and R 2 ′ and R 6 ′ are not simultaneously H; Q 1 , Q 2 , Q 1 ′, and Q 2 ′ are independently N or CH; Q 3 , Q 4 , Q 3 ′, and Q 4 ′ are independently O or CH 2 ; X and X′ are, independently, O or S; Y is O or CZZ′, where Z and Z′ are, independently, —H, —F, —Cl, —Br, —R, —OR, —SR, —NHR, —OCOR, —SCOR or —NHCOR; R is straight or branched chain alkyl (C1-C6), cyclic alkyl (C3-C6), straight or branched chain alkenyl (C2-C6), cyclic alkenyl (C4-C6), straight or branched chain alkynyl (C2-C6), cyclic alkynyl (C8-C10), aryl (C6-C12), heteroaryl (C2-C9), or heterocyclyl (C2-C9), wherein the alkyl, cyclic alkyl, alkenyl, cyclic alkenyl, alkynyl, cyclic alkynyl, aryl, heteroaryl, and heterocyclyl groups are substituted or unsubstituted; and each M is independently H or a pharmaceutically acceptable cation, wherein when two or more M are pharmaceutically acceptable cations, they may be combined to form a single pharmaceutically acceptable cation with the appropriate charge; or a pharmaceutically acceptable salt thereof or stereoisomer thereof.