Patent ID: 7498341

Claim:
A compound of the formula I in which the meanings are R1 is OH or O—(C 1 -C 6 )-alkyl; R2 is H or (C 1 -C 6 )-alkyl; R3 is (C 1 -C 8 )-alkyl, (C 3 -C 7 )-cycloalkyl or benzyl; X is N; R4 is H, (C 1 -C 6 )-alkyl or O—(C 1 -C 6 )-alkyl; R5 is H, F, Cl, Br, CF 3 or (C 1 -C 6 )-alkyl; R6 is H; R7 is H or (C 1 -C 6 )-alkyl; R8 is pyridine, thiazole, pyrazine, pyrimidine or pyrrole; and the physiologically tolerated salts thereof.