Patent ID: 7485639

Claim:
A compound of formula I wherein R 1 and R 2 are each, independently of one another, H, OH, OR 6 , SR 6 , SOR 6 , SO 2 R 6 , Hal or together are alternatively —O—CH 2 —O—, A is R 3 - and R 4 -substituted phenyl, 2-, 3- or 4-pyridyl, 4- or 5-pyrimidyl, 3- or 4-pyridazyl or 2- or 3-pyrazinyl, R 3 and R 4 are each, independently of one another, H, OH, OR 6 , SR 6 , SOR 6 , SO 2 R 6 , R 6 , Hal or together are alternatively —O—CH 2 —O—, R 5 is H or alkyl having from 1 to 10 carbon atoms, R 6 is alkyl having from 1 to 10 carbon atoms, which may be substituted by from 1 to 5 F and/or Cl atoms, cycloalkyl having 3-7 carbon atoms, alkylenecycloalkyl having 5-10 carbon atoms or alkenyl having 2-8 carbon atoms, Hal is F, Cl, Br or I, and physiologically acceptable salts and solvates thereof.