Patent ID: 8063040

Claim:
A compound of formula I in which R 1 denotes H, A, OH, OA, NO 2 , NH 2 , NHA, NA 2 , Hal, CN, A-COO, COOH, COOA or CONR 4 R 5 , R 2 , R 3 each, independently of one another, denote H, A, alkenyl having 2-6 C atoms, alkynyl having 2-6 C atoms or Hal, R 4 , R 5 each, independently of one another, denote H or A, A denotes unbranched or branched alkyl having 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 C atoms, in which 1-7 H atoms may be replaced by F, Hal denotes F, Cl, Br or I, or a pharmaceutically acceptable salt, tautomer or a stereoisomer thereof, or a mixture thereof.