Patent ID: 7141572

Claim:
A compound of the formula I in which R 1 , R 2 in each case independently of one another are H, OH, OR 5 , —SR 5 , —SOR 5 , —SO 2 R 5 or Hal, R 1 and R 2 together are also —OCH 2 O— or —OCH 2 CH 2 O—, R 3 , R 3′ in each case independently of one another are H, R 5 , OH, OR 5 , NH 2 , NHR 5 , NAA′, NHCOR 5 , NHCOOR 5 , Hal, COOH, COOR 5 , CONH 2 , CONHR 5 or CONR 5 A′, R 4 is CN or R 5 is A or cycloalkyl with 3 to 6 C-atoms, which can be substituted by 1 to 5 F and/or Cl atoms, or —(CH 2 ) n —Ar, A, A′ in each case independently of one another are alkyl with 1 to 10 C-atoms or are alkenyl with 2 to 8 C-atoms, which can be substituted by 1 to 5 F and/or Cl atoms, A and A′ together are also cycloalkyl or cycloalkylene with 3 to 7 C-atoms, wherein one CH 2 group can be replaced by O, NH, NA, NCOA or NCOOA, Ar is phenyl, n is 0, 1 or 2, Hal is F, Cl, Br or I or a pharmaceutically acceptable salt, or a stereoisomer thereof.