Patent ID: 7402548

Claim:
A compound represented by the formula (I-c) or the formula (I-d), the formula (I-c) being as follows: wherein R 1 to R 4 may be the same or different from each other, and each represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a haloalkyl group having 1 to 4 carbon atoms, a haloalkoxy group having 1 to 4 carbon atoms, a halogen atom, a nitro group, a cyano group, R 12 S(O) n , an alkoxycarbonyl group having 1 to 4 carbon atoms, or a carbonyl group, where R 12 represents an alkyl group having 1 to 6 carbon atoms, and n is an integer of 0 to 2, provided that all of R 1 to R 4 are not simultaneously hydrogen atoms, R 5′ represents an alkyl group having 1 to 6 carbon atoms, R 6′ represents a hydrogen atom, a hydroxyl group, a halogen atom or an alkyl group having 1 to 4 carbon atoms, R 9′ represents a cyano group, a haloalkyl group having 1 to 4 carbon atoms, a haloalkoxy group having 1 to 4 carbon atoms, a nitro group or R 12 S(O) n , where R 12 and n have the same meanings as defined above, R 10′ represents a hydrogen atom, a halogen atom, a haloalkyl group having 1 to 4carbon atoms or a cyano group; and the formula (I-d) being as follows: wherein R 1 to R 4 , R 5′ , R 6′ , R 9′ and R10′ have the same meanings as defined above, and R 7′ represents a hydrogen atom, a hydroxyl group, a halogen atom or a substituted sulfonyloxy group.