Patent ID: 6849766

Claim:
A 1,4-diamino-2-alkenylbenzene derivative of formula (I), or a physiologically tolerated, water-soluble salt thereof, wherein R1, R2, R3 and R4 independently of each other denote hydrogen, a C 1 -C 6 -alkyl group, a C 2 -C 4 -hydroxyalkyl group, a C 3 -C 4 -dihydroxyalkyl group or a C 1 -C 4 -alkoxy-(C 1 -C 2 )-alkyl group, or R1 and R2 or R3 and R4 form a four-membered to eight-membered aliphatic ring, with at least two of said R1, R2, R3 and R4 groups denoting hydrogen; R5 denotes hydrogen, a halogen atom, a C 1 -C 4 -alkyl group, a C 1 -C 4 -hydroxyalkyl group or a C 1 -C 4 -alkoxy group; R6, R7 and R8, independently of each other, denote hydrogen, a halogen atom, a cyano group, a C 1 -C 4 -alkoxy group, a C 1 -C 6 -alkyl group, —C(O)H, —Si(CH 3 ) 3 , a C 1 -C 4 -hydroxyalkyl group, a C 3 -C 4 -dihydroxyalkyl group, —CH 2 —Si(CH 3 ) 3 or an aromatic group of formula (II): and R9 denotes hydrogen, an amino group, a halogen atom, a nitro group or a hydroxyl group.