Compounds of the formula in which X represents methyl, ethyl, n-propyl, isopropyl, n-butyl, -CH 2 CF 3 or cyclopropyl, Y represents phenyl, 4-Cl-benzyl, 4-F-phenyl, 4-Cl-phenyl or 2,4-Cl 2 -phenyl, CKE represents one of the groups A represents hydrogen, methyl, ethyl or cyclopropyl, B represents hydrogen, methyl or cyclopropyl, A, B and the carbon atom to which they are attached represent saturated C 5 -C 6 -cycloalkyl in which optionally one ring member is replaced by oxygen or nitrogen and which is optionally mono- or disubstituted by methyl, ethyl, methoxymethyl, methoxy, ethoxy, propoxy, butoxy, trifluorethoxy, trifluoromethyl or -O-CH 2 CHCH 2, where methoxy or ethoxy are also suitable as N-substituents, or A, B and the carbon atom to which they are attached represent C 6 -cycloalkyl which is optionally substituted by an alkylenedioxy group which contains two not directly adjacent oxygen atoms, thus forming a further 5- or 6-membered ring which may be mono- or disubstituted by methyl, D represents hydrogen or cyclopropyl, or A and D together with emphasis represent C 3 -C 5 -alkanediyl in which optionally one carbon atom is replaced by oxygen, or A and D together represent C 3 -C 5 -alkanediyl which is optionally substituted by an alkylenedioxy group which optionally contains two not directly adjacent oxygen atoms and is optionally mono- to disubstituted by methyl, thus forming a further 5-membered ring, or A and Q 1 together represent C 3 -C 4 -alkanediyl, Q 2 represents hydrogen, G represents hydrogen (a) or represents one of the groups in which L represents oxygen, M represents oxygen, R 1 represents C 1 -C 6 -alkyl, R 2 represents C 1 -C 6 -alkyl, G represents group (g) where L represents oxygen and R 6 and R 7 together represent a C 5 -alkylene radical in which one carbon atom is replaced by oxygen. X represents methyl, ethyl, n-propyl, isopropyl, n-butyl, -CH 2 CF 3 or cyclopropyl, Y represents phenyl, 4-Cl-benzyl, 4-F-phenyl, 4-Cl-phenyl or 2,4-Cl 2 -phenyl, A represents hydrogen, methyl, ethyl or cyclopropyl, B represents hydrogen, methyl or cyclopropyl, A, B and the carbon atom to which they are attached represent saturated C 5 -C 6 -cycloalkyl in which optionally one ring member is replaced by oxygen or nitrogen and which is optionally mono- or disubstituted by methyl, ethyl, methoxymethyl, methoxy, ethoxy, propoxy, butoxy, trifluorethoxy, trifluoromethyl or -O-CH 2 CHCH 2, where methoxy or ethoxy are also suitable as N-substituents, or A, B and the carbon atom to which they are attached represent C 6 -cycloalkyl which is optionally substituted by an alkylenedioxy group which contains two not directly adjacent oxygen atoms, thus forming a further 5- or 6-membered ring which may be mono- or disubstituted by methyl, D represents hydrogen or cyclopropyl, or A and D together with emphasis represent C 3 -C 5 -alkanediyl in which optionally one carbon atom is replaced by oxygen, or A and D together represent C 3 -C 5 -alkanediyl which is optionally substituted by an alkylenedioxy group which optionally contains two not directly adjacent oxygen atoms and is optionally mono- to disubstituted by methyl, thus forming a further 5-membered ring, or A and Q 1 together represent C 3 -C 4 -alkanediyl, Q 2 represents hydrogen, G represents hydrogen (a) or represents one of the groups L represents oxygen, M represents oxygen, R 1 represents C 1 -C 6 -alkyl, R 2 represents C 1 -C 6 -alkyl, G represents group (g)