Patent ID: 7189679

Claim:
A compound of the formula (I) or salt thereof in which R 1 is C 1 –C 6 alkyl; R 2 and R 3 independently of one another are hydrogen, C 3 –C 6 cycloalkyl, C 2 –C 6 alkenyl, C 2 –C 6 alkynyl or C 1 –C 6 alkyl substituted s times by radicals from the group consisting of halogen, C 1 –C 4 alkoxy and C 1 –C 4 alkylthio, or NR 2 R 3 forms a 5- or 6-membered heterocyclic radical from the group consisting of 1-pyrrolyl, 1-pyrrolidinyl, 1-piperidinyl, 1-pyrazolyl, 1,2,3-triazol-1-yl, 1,2,4-triazol-1-yl, 1-tetrazolyl, 1-pyrazolidinyl, 1-imidazolyl, 2-isoxazoldinyl, 3-oxazolidinyl, 1,2,3-oxadiazolidin-2-yl, 1,2,3-oxadiazolidin-3-yl, 1,2,4-oxadiazolidin-2-yl, 1,2,3-oxadiazolidin-4-yl, 1,3,4-oxadiazolidin-3-yl, 1,3,4-oxadiazolidin-4-yl, 3-thiazolidinyl, 2,3-thiadiazolidin-2-yl, 1,2,3-thiadiazolidin-3-yl, 1,2,4-thiadiazolidin-2-yl, 1,2,3-thiadiazolidin-4-yl, 1,3,4-thiadiazolidin-3-yl, 1,3,4-thiadiazolidin-4-yl, 1-morpholinyl, 2,3-dihydropyrrol-1-yl, 2,5-dihydropyrrol-1-yl, 2,3-dihydroisoxazol-2-yl, 2,5-dihydroisothiazol-1-yl, 1,2-dihydropyridin-1-yl, 1,4-dihydropyridin-1-yl, 3,4,5,6-tetrahydropyridin-1-yl, 1-piperazinyl and 1-tetrahydropyrimidinyl, the aforementioned heterocyclic radicals being substituted s times by substituents from the group consisting of halogen, cyano, C 1 –C 4 alkoxy, trifluoromethyl, trifluoroethyl, fluoro-C 1 –C 3 alkyl, fluoro-C 1 –C 3 alkoxy, cyano-C 1 –C 4 alkyl, C 3 –C 6 cycloalkyl, C 3 –C 6 cycloalkyl-C 1 –C 4 -alkyl, C 1 –C 3 alkoxymethyl; R 4 is hydrogen, halogen, C 1 –C 4 alkyl, halo-C 1 –C 4 alkyl, C 1 –C 4 alkoxy, C 1 –C 4 alkylthio, C 1 –C 4 alkylsulfinyl or C 1 –C 4 alkylsulfonyl; R 5 is hydrogen, C 1 –C 6 alkylcarbonylmethyl, phenylsulfonyl, C 1 –C 4 alkylsulfonyl substituted s times by halogen, phenylsulfonyl substituted once by methyl or halogen, benzyl substituted s times by halogen, nitro or methoxy, or benzoylmethyl substituted s times by halogen, nitro, methyl or methoxy; R 6 is C 1 –C 4 alkyl; R 7 is hydrogen, (C 1 –C 4 )alkyl or C 3 –C 6 cycloalkyl; n is 0, 1 or 2; s is 0, 1, 2 or 3; t is 1, 2 or 3.