Patent ID: 8710088

Claim:
Pharmaceutical or diagnostic composition comprising active substance of formula VI-2 wherein R 1 and R 3 are selected from (i) H, OH, NH 2 or a halogen atom; (ii) single- or multi-branched or straight-chain alkyl or heteroalkyl groups with one or two rings and up to 10 carbon atoms; (iii) cyclic alkyl or heteroalkyl groups with 1 or 2 rings or aryl or heteroaryl groups with up to 10 carbon atoms each; and wherein R 2 is selected from (i) OH, NH 2 or a halogen atom; (ii) single- or multi-branched or straight-chain alkyl or heteroalkyl groups with one or two rings and up to 10 carbon atoms; (iii) cyclic alkyl or heteroalkyl groups with 1 or 2 rings or aryl or heteroaryl groups with up to 10 carbon atoms each; and wherein for the structure of Formula VI-2, the alkyl, heteroalkyl, aryl or heteroaryl groups comprise 0, 1, 2, 3 or 4 substituents, each selected from a group consisting of Cl, Fl, Br and I, X 1 is selected from the group consisting of H, F, I, Br, Cl, OH, OA, SH, SA, NH 2 , NHA 1 , NA 1 A 2 , and A; wherein A, A 1 , and A 2 are independently a branched, straight-chain or cyclic alkyl group with 1, 2, 3, 4, 5, or 6 carbon atoms, an aromatic group with 1, 2, 3, 4, 5, 6, or 7 carbon atoms or combinations thereof, wherein individual carbon atoms are optionally replaced with 1, 2, 3, or 4 S, N, or O atoms, and X 2 is O or S.