Patent ID: 8541414

Claim:
A pyridazinone compound represented by the formula (I) wherein in formula, R 1 represents a C 1-6 alkyl group or a (C 1-6 alkyloxy) C 1-6 alkyl group, R 2 represents a hydrogen atom, G represents a hydrogen atom, a group represented by formula, a group represented by formula, or a group represented by formula, (wherein in formula, L represents an oxygen or a sulfur atom, R 3 represents a C 1-6 alkyl group, a C 3-8 cycloalkyl group, a C 2-6 alkenyl group, a C 2-6 alkynyl group, a C 6-10 aryl group, a (C 6-10 aryl) C 1-6 alkyl group, a C 1-6 alkyloxy group, a C 3-8 cycloalkyloxy group, a C 2-6 alkenyloxy group, a C 2-6 alkynyloxy group, a C 6-10 aryloxy group, a (C 6-10 aryl) C 1-6 alkyloxy group, an amino group, a C 1-6 alkylamino group, a C 2-6 alkenylamino group, a C 6-10 arylamino group, di(C 1-4 alkyl)amino group, di(C 2-6 alkenyl)amino group, a (C 1-6 alkyl) (C 6-10 aryl)amino group or a three- to eight-membered nitrogen containing heterocyclic ring group, R 4 represents a C 1-6 alkyl group, a C 6-10 aryl group, a C 1-6 alkylamino group or di(C 1-6 alkyl)amino group and R 5 and R 6 may be same or different and represent a C 1-6 alkyl group, a C 3-8 cycloalkyl group, a C 2-6 alkenyl group, a C 6-10 aryl group, a C 1-6 alkyloxy group, a C 3-8 cycloalkyloxy group, a C 6-10 aryloxy group, a (C 6-10 aryl) C 1-6 alkyloxy group, a C 1-6 alkylthio group, C 1-6 alkylamino group or di(C 1-6 alkyl)amino group, here, any group represented by R 3 , R 4 , R 5 and R 6 may be substituted with at least one halogen atom and a C 3-8 cycloalkyl group, a C 6-10 aryl group, an aryl moiety of a (C 6-10 aryl) C 1-6 alkyl group, a C 3-8 cycloalkyloxy group, a C 6-10 aryloxy group, an aryl moiety of a (C 6-10 aryl) C 1-6 alkyloxy group, an aryl moiety of a C 6-10 arylamino group, an aryl moiety of a (C 1-6 alkyl)(C 6-10 aryl)amino group and a three- to eight-membered nitrogen containing heterocyclic ring group may be substituted with at least one C 1-6 alkyl group), Z 1 represents a C 1-6 alkyl group, Z 2 represents a C 1-6 alkyl group, n represents 0, 1, 2, 3 or 4 and each of Z 2 may be same or different when n represents an integer of 2 or more, and a sum of the number of carbon atoms in the group represented by Z 1 and that in the group represented by Z 2 is equal to 2 or more.