Patent Document ID: 8039477
Application ID: 10524956
Patent Flag: 1

Claim One:
1. A compound of the formula in which R 1 is C 1 -C 6 -alkyl, trifluoromethyl, hydroxy, C 1 -C 6 -alkoxy, —C(═O)OR 5 or —C(═O)NR 6 R 7 , where C 1 -C 6 -alkyl is optionally substituted by 1 to 3 radicals independently of one another selected from the group of hydroxy, C 1 -C 6 -alkoxy, halogen, trifluoromethyl, trifluoromethoxy, —C(═O)OR 5 or —C(═O)NR 6 R 7 , and R 5 is C 1 -C 6 -alkyl, R 6 and R 7 are independently of one another hydrogen, C 6 -C 10 -aryl, C 1 -C 6 -alkyl, or together with the nitrogen atom to which they are bonded form a 4- to 10-membered heterocyclyl, R 2 is hydrogen, C 1 -C 6 -alkyl, trifluoromethyl, C 1 -C 6 -alkoxy, or R 1 and R 2 together with the carbon atom to which they are bonded form C 3 -C 8 -cycloalkyl, C 3 -C 8 -cycloalkenyl or 4- to 10-membered heterocyclyl, which are optionally substituted by up to 2 substituents from the group of C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, hydroxy, oxo, —C(═O)OR 8 , and R 8 is C 1 -C 6 -alkyl or benzyl, provided that, when R 1 is C 1 -C 6 -alkyl, R 2 is not hydrogen or C 1 -C 6 -alkyl, R 3 is hydrogen or C 1 -C 6 -alkyl, R 4 is pentan-3-yl or C 3 -C 6 -cycloalkyl, X is oxygen or sulfur, and the salts thereof.