| abstract |
Compounds of the formula I (See formula) in which R1, R2 in each case independently of each other are H, OH, OR5, -SR5, -SOR5, -SO2R5 or Hal, R1 and R2 together are also OCH2O-0 OCH2CH2OR3 , R3 '' in each case independently of each other are H, R5, OH, OR5, NH2, NHR5, NAA¿, NHCOR5, NHCOOR5, Hal, COOH, COOR5, CONH2, CONHR5 or CONR5A¿, R4 is CN or (See formula) R5 is A or cycloalkyl with 3 to 6 C atoms that can be substituted by 1 to 5 atoms of F and / or Cl, or - (CH2) n-Ar, A, A ¿in each case independently of each other are alkyl with 1 to 10 C atoms or are alkenyl with 2 to 8 C atoms, which can be substituted for 1 to 5 atoms of F and / or Cl, A and A together are also cycloalkyl or cycloalkylene with 3 to 7 atoms of C, where a CH2 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 IY its salts, solvates and stereoisomers, including mixtures of The same in all proportions. |