Abstract: A novel herbicide having remarkable herbicidal activities against undesired plants is provided. A pyridazinone compound represented by the formula (I) or its salt: wherein X is —O—, —S—, —SO—, —SO2— or —N(Y)—; Q is monocyclic aryl which may be substituted by Z, monocyclic heteroaryl which may be substituted by Z or the like; Y is a hydrogen atom or alkyl; Z is halogen, alkyl or the like; R1 is alkyl, alkenyl or the like; R2 is a hydrogen atom, alkyl or the like; R3 is halogen, hydroxy or the like; R4 is a hydrogen atom, alkyl or the like; and n is an integer of from 0 to 4.

Abstract: A novel herbicide having remarkable herbicidal activities against undesired plants is provided. A pyridazinone compound represented by the formula (I) or its salt: wherein X is —O—, —S—, —SO—, —SO2— or —N(Y)—; Q is monocyclic aryl which may be substituted by Z, monocyclic heteroaryl which may be substituted by Z or the like; Y is a hydrogen atom or alkyl; Z is halogen, alkyl or the like; R1 is alkyl, alkenyl or the like; R2 is a hydrogen atom, alkyl or the like; R3 is halogen, hydroxy or the like; R4 is a hydrogen atom, alkyl or the like; and n is an integer of from 0 to 4.

Abstract: To provide a novel pesticide. The present invention provides a pesticide containing a pyridyl-triazolopyrimidine derivative represented by the formula (I) or its salt as an active ingredient: wherein R1 is substitutable alkyl, substitutable cycloalkyl, substitutable alkenyl, substitutable alkynyl, halogen, cyano, aryl, a heterocyclic group which may be substituted by alkyl, OR2, S(O)n#191R3? or NR4R5; R2 is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, alkoxyalkyl, acetyl or aryl; R3 is alkyl or acetyl; R4 is hydrogen or alkyl; R5 is hydrogen, alkyl or the like; X is alkyl, alkenyl, alkynyl, halogen, haloalkyl, cyano, nitro or the like; m is an integer of from 1 to 4; and n is an integer of from 0 to 2.

Abstract: A novel pesticide is provided. The present invention provides a pesticide containing, as an active ingredient, an N-phenyl-methanamine derivative represented by the formula (I) or its salt: wherein R1 is alkyl which may be substituted, etc.; each of R2, R3, R4 and R6 which are independent of one another, is hydrogen, halogen, alkyl which may be substituted, etc.; R5 is haloalkyl or halogen; each of R7 and R8 which are independent of each other, is hydrogen, cyano, alkyl, etc.; R9 is alkyl, cycloalkyl, etc.; m is from 0 to 1 and n is from 0 to 4.

Abstract: A novel pesticide is provided. The present invention provides a pesticide containing, as an active ingredient, a pyridyl-methanamine derivative represented by the formula (I) or its salt: wherein R1 is hydrogen, alkyl, alkenyl, alkynyl, aryl, a heterocyclic group, etc.; each of R2 and R3 which are independent of each other, is hydrogen, halogen, cyano, nitro, alkyl, cycloalkyl, alkenyl, alkynyl, aryl, a heterocyclic group, etc.; R4 is trifluoromethyl or chlorodifluoromethyl; R5 is hydrogen, halogen, cyano, nitro, alkyl, etc.; each of R6 and R7 which are independent of each other, is hydrogen, cyano, alkyl, haloalkyl, etc.; R8 is alkyl, cycloalkyl, alkoxyalkyl, alkoxyalkoxyalkyl, hydroxyalkyl, halogen, haloalkyl, cyano, nitro, etc.; and n is an integer of from 0 to 4.

Abstract: To provide a novel pesticide. The present invention provides a pesticide containing a pyridyl-triazolopyrimidine derivative represented by the formula (I) or its salt as an active ingredient: wherein R1 is substitutable alkyl, substitutable cycloalkyl, substitutable alkenyl, substitutable alkynyl, halogen, cyano, aryl, a heterocyclic group which may be substituted by alkyl, OR2, S(O)n#191R3? or NR4R5; R2 is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, alkoxyalkyl, acetyl or aryl; R3 is alkyl or acetyl; R4 is hydrogen or alkyl; R5 is hydrogen, alkyl or the like; X is alkyl, alkenyl, alkynyl, halogen, haloalkyl, cyano, nitro or the like; m is an integer of from 1 to 4; and n is an integer of from 0 to 2.

Abstract: To provide cytokine production inhibitors useful as preventive or therapeutic medicines for diseases accompanied by hyperactivated immune functions. A cytokine production inhibitor containing, as an active ingredient, a thioamide compound represented by the formula (I) or a salt thereof: wherein A is N, NO, C—NO2 or C—CN; Hal is a halogen; M1 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl, heterocyclyl, amino, O, S, SO or SO2; M2 is amino, O, S or a single bond; R1 is a halogen, alkyl or the like; each of R2, R3, R4 and R5 is independently H, alkyl or the like; R6 is a halogen, alkyl or the like; Cy is cycloalkyl, cycloalkenyl, aryl or heterocyclyl; each of k, p and q is independently an integer of from 0 to 3; and r is an integer of from 0 to 5.

Abstract: To provide cytokine production inhibitors useful as preventive or therapeutic medicines for diseases accompanied by hyperactivated immune functions. A cytokine production inhibitor containing, as an active ingredient, a thioamide compound represented by the formula (I) or a salt thereof: wherein A is N, NO, C—NO2 or C—CN; Hal is a halogen; M1 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl, heterocyclyl, amino, O, S, SO or SO2; M2 is amino, O, S or a single bond; R1 is a halogen, alkyl or the like; each of R2, R3, R4 and R5 is independently H, alkyl or the like; R6 is a halogen, alkyl or the like; Cy is cycloalkyl, cycloalkenyl, aryl or heterocyclyl; each of k, p and q is independently an integer of from 0 to 3; and r is an integer of from 0 to 5.