An object of the present application is to provide a novel
rodenticide. According to the present application, a
rodenticide comprising a compound represented by the following general formula (I), a salt thereof, or a
prodrug thereof is provided. In the formula, R 1 and R 2 each independently represent a
hydrogen atom or an
alkyl group having 1 to 8 carbon atoms. n represents an integer of 1 to 3. R 3 , R 4 , R 5 and R 6 each independently represent a
hydrogen atom or an
alkyl group having 1 to 6 carbon atoms. X represents COOH, -C(=O)NH-Z, -CH(OH)-(Y) m -CH(OH)R7, -NH-CO-O-R 10 , -CO-O-R 10 or -NH-CO-N(R 11 )-R 10 . Z represents a
hydrogen atom, -CN, an
alkyl group having 1 to 8 carbon atoms, an
alkoxy group having 1 to 8 carbon atoms or a hydroxyl group, Y represents -C(R8)(R9)-, -C(=O)- or -C(=CH2)-, and m represents an integer of 0 to 3. R7, R8 and R9 each independently represent a
hydrogen atom or an alkyl group having 1 to 8 carbon atoms. The alkyl group having 1 to 8 carbon atoms represented by Z, R7, R8 and R9 can have a
substituent selected from a carboxyl group or a hydroxyl group. R 10 and R 11 each independently represent a
hydrogen atom or an alkyl group having 1 to 8
carbon atom which can have a
substituent.