Patent ID: 8916578

Claim:
A compound of formula (I): wherein: R 1 represents H or halogen; R 2 represents H or a substituted or unsubstituted C 1 -C 6 alkoxy; R 3 represents H, a substituted or unsubstituted C 1 -C 6 alkyl, or a substituted or unsubstituted C 1 -C 6 alkoxy; R 4 represents H, halogen, a substituted or unsubstituted C 1 -C 6 alkyl, a substituted or unsubstituted C 1 -C 6 nitrile, or a substituted or unsubstituted C 3 -C 10 cycloalkenyl; R 5 represents H, halogen, a substituted or unsubstituted C 1 -C 6 haloalkyl, a substituted or unsubstituted C 1 -C 6 alkyl, or a substituted or unsubstituted C 1 -C 6 nitrile; R 6 represents H, halogen, a substituted or unsubstituted C 1 -C 6 alkyl, or a substituted or unsubstituted C 1 -C 6 alkoxy; and R 7 represents halogen.