Patent ID: 7875753

Claim:
Compounds of the formula (V) in which Ar is a radical of the formula (VIII) in which R 1 , R 2 and R 3 are the same or different and are each independently hydrogen, C 1 -C 6 -alkyl, optionally substituted C 6 -C 10 -aryl, nitro, cyano, halogen, C 1 -C 4 -alkoxy, C 1 -C 4 -alkylthio or C 6 -C 10 -aryloxy, R 4 is C 1 -C 6 -alkyl, optionally substituted C 6 -C 10 -aryl, nitro, cyano, halogen, C 1 -C 4 -alkoxy, C 1 -C 4 -alkylthio or C 6 -C 10 -aryloxy and n is 0 or 1.