Patent ID: 8138207

Claim:
The compound of formula I wherein R20 is H; R21 is selected from the group consisting of (C 6 -C 10 )-aryl and (C 1 -C 6 )-alkylene-(C 6 -C 10 )-aryl, where the aryl radicals may be mono- or polysubstituted by F, Cl, Br, I, CN, NO 2 , SH, OH, CF 3 , (C 1 -C 6 )-alkyl, O—(C 1 -C 6 )-alkyl, or S—(C 1 -C 6 )-alkyl; R3 is (C 2 -C 10 )-alkenyl; R4, R5 are each H; R11 is selected from the group consisting of F, Cl, Br, I, (C 1 -C 6 )-alkyl, (C 3 -C 8 )-cycloalkyl, NH 2 , NH(C 1 -C 6 )-alkyl, NH(C 3 -C 7 )-cycloalkyl, N((C 1 -C 6 )-alkyl) 2 and O—(C 1 -C 6 )-alkyl, where the alkyl groups may be mono- or polysubstituted by F, Cl, Br or I; and n is 0; or a pharmaceutically acceptable salt thereof.