Patent ID: 7425574

Claim:
A compound of formula I in which R 1 denotes mono- or disubstitution by OH, OA, CN, Hal, COR or CH 2 R, R denotes OH, OA, NH 2 , NHA or NA 2 , R 2 , R 3 denote H or A, R 4 denotes H, mono- or disubstitution by OH, OA, NH 2 , NHA, NA 2 , CN, Hal, COR or CH 2 R, A denotes alkyl having 1, 2, 3, 4, 5 or 6 atoms, Hal denotes F, Cl, Br or I, m denotes 2, 3, 4, 5 or 6, and n denotes 1, 2, 3 or 4, or a pharmaceutically acceptable derivative, solvate or stereoisomer thereof.