Patent ID: 8106215

Claim:
A compound of the formula (I) wherein R 1 represents hydrogen, (C 1-4 )alkyl or fluorine; R 2 represents hydrogen, (C 1-4 alkyl or fluorine; R 3 represents aryl, which is unsubstituted, mono-, di-, or tri-substituted, wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, trifluoromethyl, trifluoromethoxy, and halogen; or heteroaryl, which is unsubstituted, mono-, di-, or tri-substituted, wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, halogen, and trifluoromethyl; A represents R 4 represents (C 1-4 )alkyl, or —NR 6 R 7 ; R 5 represents (C 1-4 )alkyl; R 6 represents hydrogen, or (C 1-4 )alkyl; R 7 represents hydrogen, or (C 1-4 )alkyl; and D represents aryl, which is unsubstituted, mono-, di-, or tri-substituted, wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, trifluoromethyl, and halogen; or a salt of such a compound, wherein the compound of formula (I) may be present as mixture of stereoisomers or as pure stereoisomer.