Patent ID: 7579468

Claim:
A compound of the Formula 7, and pharmaceutically acceptable salts, enantiomers, stereoisomers, rotamers, tautomers, diastereomers, or racemates thereof; wherein R 13 is selected from the group consisting of —COOH, imidazolyl, —SO 3 H, —OSO 3 H, —OH, morpholino, piperazinyl, —PO 3 H, —PO 3 C 1-4 alkyl and —NO 2 ; R 2 and R 3 are each, independently, selected from the group consisting of a hydrogen atom, C(O)N(R 8 )R 9 , N(R 8 )R 9 , CH 2 N(R 8 )R 9 and CH(CH 3 )N(R 8 )R 9 , wherein R 8 and R 9 are each, independently, selected from the group consisting of —H and —(C 1-4 alkyl) 0-1 G, wherein G is selected from the group consisting of —COOH, —H, —PO 3 H, —SO 3 H, —Br, —Cl, —F, —OC 1-4 alkyl, —SC 1-4 alkyl, aryl, —C(O)OC 1 -C 6 -alkyl, —C(O)C 1-4 alkyl-COOH, —C(O)C 1 -C 4 -alkyl and —C(O)-aryl; or N(R 8 )R 9 is pyrrolyl, tetrazolyl, pyrrolidinyl, pyrrolidin-2-one, dimethylpyrrolyl, imidazolyl, morpholino or provided that at least one of R 2 and R 3 not —H; and x is 1, 2, 3 or 4.