Patent ID: 8404723

Claim:
A compound of the formula (I) in which Ar is (C 6 -C 10 )-aryl which may be substituted once to three times, identically or differently, by substituents selected from the group consisting of halogen, cyano, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy and (C 1 -C 4 )-alkylthio, where said alkyl, alkoxy and alkylthio radicals may in turn be substituted by cyano or up to three times by fluorine, R 1 is (C 1 -C 6 )-alkyl which may be substituted by phenyl, or is (C 1 -C 6 )-alkylthio, where said alkyl and alkylthio radicals may in turn be substituted up to three times by fluorine, R 2 is (C 1 -C 6 )-alkyl which may be substituted by cyano, hydroxy, (C 1 -C 4 )-alkoxy, trifluoromethoxy, amino, mono-(C 1 -C 4 )-alkylamino, di-(C 1 -C 4 )-alkylamino, (C 3 -C 6 )-cycloalkyl, phenyl or up to three times by fluorine, or is (C 3 -C 6 )-cycloalkyl, X is C—R 4 , and R 3 and R 4 are identical or different and independently of one another are hydrogen, halogen, amino, mono-(C 1 -C 4 )-alkylamino or di-(C 1 -C 4 )-alkylamino, are (C 1 -C 4 )-alkyl which may be substituted by hydroxy, (C 1 -C 4 )-alkoxy, amino, mono-(C 1 -C 4 )-alkylamino, di-(C 1 -C 4 )-alkylamino or up to three times by fluorine, or are phenyl which may be substituted by halogen, cyano, (C 1 -C 4 )-alkyl, trifluoromethyl, (C 1 -C 4 )-alkoxy or trifluoromethoxy, or a salt thereof.