A compound of the formula I in which R1 is O-(C 1 -C 6)-alkyl, (C 2 -C 6) -alkynyl, (C 2 -C 6)-alkynylene-(C 1 -C 10)-cycloalkyl, where the O-(C 1 -C 6) -alkyl radical, the (C 2 -C 6)-alkynyl radical and the (C 2 -C 6)-alkynylene- (C 3 -C 10) -cycloalkyl radical may be mono- or polysubstituted by fluorine; R2, R6 are each independently H, F, Cl, Br, CN, (C 1 -C 6)-alkyl, O-(C 1 -C 6) -alkyl, CO- (C 1 -C 6) -alkyl, where the (C 1 -C 6)-alkyl radical, O-(C 1 -C 6)-alkyl radical and the CO-(C 1 -C 6)-alkyl radical may be mono- or polysubstituted by fluorine; R3, R4, R5 are each independently H, F, Cl, Br, I, NO 2, CN, O- (C 1 -C 6) -alkyl, (C 1 -C 6) -alkyl, (C 1 -C 3) - alkylene-(C 3 -C 6)-cycloalkyl, NH 2, NH(C 1 -C 6)-alkyl, N((C 1 -C 6)-alkyl) 2, SO 2 -CH 3, SO 2 -NH 2, SO 2 -NH(C 1 -C 6) -alkyl, SO 2 -N((C 1 -C 6)-alkyl) 2, COOH, COO-(C 1 -C 6)-alkyl, CONH 2, CONH(C 1 -C 6) -alkyl, CON((C 1 -C 6)-alkyl) 2, SF 5, (C 6 -C 10)-aryl, (C 3 -C 10)-cycloalkyl, or a 4- to 12-membered heterocycle, where the (C 1 -C 6)-alkyl radical, the O-(C 1 -C 6)-alkyl radical, the (C 1 -C 3)-alkylene-(C 3 -C 6)-cycloalkyl radical, the NH(C 1 -C 6)-alkyl radical, the N((C 1 -C 6)-alkyl) 2 radical, the SO 2 -CH 3 radical, the SO 2 -NH(C 1 -C 6)-alkyl radical, SO 2 -N((C 1 -C 6)-alkyl) 2 radical, COO-(C 1 -C 6)-alkyl radical, the CONH(C 1 -C 6)-alkyl radical and the CON((C 1 -C 6)-alkyl) 2 radical may each be mono- or polysubstituted by F, and where the (C 6 -C 10)-aryl radical, the (C 3 -C 10)-cycloalkyl radical and the 4- to 12-membered heterocycle radical may each be mono- to trisubstituted by F, Cl, Br, I, OH, CF 3, CHF 2, CH 2 F, NO 2, CN, OCF 3, OCHF 2, O-(C 1 -C 6)-alkyl, (C 1 -C 6)-alkyl, NH 2, NH(C 1 -C 6)-alkyl, N((C 1 -C 6)-alkyl) 2, SO 2 -CH 3, SO 2 -NH 2, SO 2 -NH(C 1 -C 6)-alkyl, SO 2 -N((C 1 -C 6)-alkyl) 2, COOH, COO-(C 1 -C 6)-alkyl, CONH 2, CONH(C 1 -C 6) -alkyl, CON((C 1 -C 6)-alkyl) 2 or SF 5; R7, R8 are each independently H, F; A is (C 6 -C 10) -aryl, (C 3 -C 10)-cycloalkyl, or a 4- to 12-membered heterocycle; X is -CH 2 -, -CH 2 -CH 2 -, -CH 2 O-, -OCH 2 -, -CH 2 S, -SCH 2 --CH 2 SO-, -SOCH 2 -, -CH 2 SO 2 -, -SO 2 CH 2 -; and physiologically compatible salts thereof. R1 is O-(C 1 -C 6)-alkyl, (C 2 -C 6) -alkynyl, (C 2 -C 6)-alkynylene-(C 1 -C 10)-cycloalkyl, where the O-(C 1 -C 6) -alkyl radical, the (C 2 -C 6)-alkynyl radical and the (C 2 -C 6)-alkynylene- (C 3 -C 10) -cycloalkyl radical may be mono- or polysubstituted by fluorine; R2, R6 are each independently H, F, Cl, Br, CN, (C 1 -C 6)-alkyl, O-(C 1 -C 6) -alkyl, CO- (C 1 -C 6) -alkyl, where the (C 1 -C 6)-alkyl radical, O-(C 1 -C 6)-alkyl radical and the CO-(C 1 -C 6)-alkyl radical may be mono- or polysubstituted by fluorine; R3, R4, R5 are each independently H, F, Cl, Br, I, NO 2, CN, O- (C 1 -C 6) -alkyl, (C 1 -C 6) -alkyl, (C 1 -C 3) - alkylene-(C 3 -C 6)-cycloalkyl, NH 2, NH(C 1 -C 6)-alkyl, N((C 1 -C 6)-alkyl) 2, SO 2 -CH 3, SO 2 -NH 2, SO 2 -NH(C 1 -C 6) -alkyl, SO 2 -N((C 1 -C 6)-alkyl) 2, COOH, COO-(C 1 -C 6)-alkyl, CONH 2, CONH(C 1 -C 6) -alkyl, CON((C 1 -C 6)-alkyl) 2, SF 5, (C 6 -C 10)-aryl, (C 3 -C 10)-cycloalkyl, or a 4- to 12-membered heterocycle, where the (C 1 -C 6)-alkyl radical, the O-(C 1 -C 6)-alkyl radical, the (C 1 -C 3)-alkylene-(C 3 -C 6)-cycloalkyl radical, the NH(C 1 -C 6)-alkyl radical, the N((C 1 -C 6)-alkyl) 2 radical, the SO 2 -CH 3 radical, the SO 2 -NH(C 1 -C 6)-alkyl radical, SO 2 -N((C 1 -C 6)-alkyl) 2 radical, COO-(C 1 -C 6)-alkyl radical, the CONH(C 1 -C 6)-alkyl radical and the CON((C 1 -C 6)-alkyl) 2 radical may each be mono- or polysubstituted by F, and where the (C 6 -C 10)-aryl radical, the (C 3 -C 10)-cycloalkyl radical and the 4- to 12-membered heterocycle radical may each be mono- to trisubstituted by F, Cl, Br, I, OH, CF 3, CHF 2, CH 2 F, NO 2, CN, OCF 3, OCHF 2, O-(C 1 -C 6)-alkyl, (C 1 -C 6)-alkyl, NH 2, NH(C 1 -C 6)-alkyl, N((C 1 -C 6)-alkyl) 2, SO 2 -CH 3, SO 2 -NH 2, SO 2 -NH(C 1 -C 6)-alkyl, SO 2 -N((C 1 -C 6)-alkyl) 2, COOH, COO-(C 1 -C 6)-alkyl, CONH 2, CONH(C 1 -C 6) -alkyl, CON((C 1 -C 6)-alkyl) 2 or SF 5; R7, R8 are each independently H, F; A is (C 6 -C 10) -aryl, (C 3 -C 10)-cycloalkyl, or a 4- to 12-membered heterocycle; X is -CH 2 -, -CH 2 -CH 2 -, -CH 2 O-, -OCH 2 -, -CH 2 S, -SCH 2 --CH 2 SO-, -SOCH 2 -, -CH 2 SO 2 -, -SO 2 CH 2 -;