Patent ID: 8765763

Claim:
A compound of the formula I wherein X denotes C—H, or C—Cl, Y, Z independently of one another each denote CH, (a) R 1 denotes H, R 2 denotes R 2.1 —C 0-1 -alkylene, R 2.1 denotes a group selected from and A denotes —O—, —S—, —S(O)— or —S(O 2 )—; or (b) R 1 denotes H, R 2 denotes R 2.1 —CH 2 — and R 2.1 denotes a group or (c) R 1 and R 2 together with the carbon atom to which they are attached denote a C 4-6 -cycloalkyl group which is spirocyclically linked in each case to an oxetane or tetrahydropyran ring; or (d) R 1 and R 2 together with the carbon atom to which they are attached denote a group and R 3 denotes H, —C(O)—O—C 1-4 -alkyl or a C 1-6 -alkyl group which may be substituted by 1, 2, 3, 4 or 5 fluorine atoms, R a denotes H, F, —OCH 3 or —OCF 3 , R b denotes H, F, —OCH 3 or —OCF 3 , and R c denotes H, F, —OCH 3 or —OCF 3 , or a physiologically acceptable salt thereof.