Patent ID: 7659271

Claim:
A compound represented by the following general formula (I): or a salt thereof wherein R 1 , R 2 , R 3 , R 4 and R 5 are the same or different, and represent a hydrogen atom, a halo(C 1 -C 6 alkyl) group, or a cyano group, R 6 represents a C 1 -C 6 alkyl group, R 7 , R 8 , R 9 and R 10 are the same or different, and represent a hydrogen atom, a halogen atom, a C 1 -C 6 alkyl group, a halo(C 1 -C 6 alkyl) group, or a C 1 -C 6 alkoxy group, R 11 and R 12 are the same or different, and represent a C 1 -C 6 alkyl group, or a (C 3 -C 8 cycloalkyl)(C 1 -C 6 alkyl) group, wherein the (C 3 -C 8 cycloalkyl)(C 1 -C 6 alkyl) group may have one hydroxycarbonyl(C 1 -C 6 alkyl) group or (C 1 -C 6 alkoxy)carbonyl(C 1 -C 6 alkyl) group as a substituent on the cycloalkyl group, or R 11 and R 12 combine to form a morpholino group or a piperidino group together with the adjacent nitrogen atom, wherein the morpholino group or the piperidino group may have 1 or 2 C 1 -C 6 alkyl groups as a substituent, and R 13 represents a (C 1 -C 6 alkyl)thio(C 1 -C 6 alkoxy) group, a (C 1 -C 6 alkyl)sulfinyl(C 1 -C 6 alkoxy) group, or a (C 1 -C 6 alkyl)sulfonyl(C 1 -C 6 alkoxy) group, and the general formula (I) represents both individual enantiomers and mixtures thereof.