Patent ID: 8003668

Claim:
A method for the reduction of blood sugar levels comprising administering to a patient in need thereof a therapeutically effective amount of a compound of formula I wherein: R20 and R21 are each independently selected from the group consisting of H, (C 1 -C 6 )-alkylene-(C 6 -C 10 )-aryl and S(O) 2 -aryl, wherein the aryl groups are each optionally mono- or poly-substituted by F, Cl, Br, I, CN, NO 2 , SH, OH, (C 1 -C 6 )-alkyl, O-(C 1 -C 6 )-alkyl or S-(C 1 -C 6 )-alkyl; R3 is selected from the group consisting of (C 2 -C 10 )-alkenyl and (C 1 -C 6 )-alkylene -(C 6 -C 10 )-aryl; R4 and R5 are each H; and 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 are optionally mono- or polysubstituted by F, Cl, Br or I; and n is 0; or a pharmaceutically acceptable salt thereof useful in the preparation of a pharmaceutical composition for the reduction of blood sugar levels.