Patent ID: 7220732

Claim:
A pharmaceutical composition comprising, in association with a pharmaceutically acceptable diluent or carrier, a compound of the formula or a salt, metal complex or hydrate or other solvate thereof, wherein: M is BX 2 , wherein each X is independently a halide; each R 1 , R 3 , R 4 and R 6 is independently selected from the group consisting of: H; a substituted or unsubstituted, saturated or unsaturated, cyclic, moiety; a substituted or unsubstituted, saturated or unsaturated, heterocyclic moiety; or a substituted or unsubstituted, saturated or unsaturated, straight or branched chain alkyl or acyl moiety; and each R 2 and R 5 is independently selected from halogens, or an alkyl, cyclic, or heterocyclic moiety wherein said alkyl, cyclic, or heterocyclic moiety is each substituted with at least one heavy atom.