Patent ID: 7700786

Claim:
A pyrazole of formula (I), wherein: R 1 is a hydrogen atom; an alkyl group having 1 to 6 carbon atoms which is unsubstituted or substituted by halogen, alkoxy having 1 to 6 carbon atoms or alkyloxycarbonyl having 1 to 6 carbon atoms; a cycloalkyl group having 3 to 8 carbon atoms; an alkyloxycarbonyl group having 1 to 6 carbon atoms; or a phenyl group which is unsubstituted or substituted by alkyl having 1 to 12 carbon atoms or halogen; R 2 is a hydrogen atom; R 3 is a hydrogen atom; an alkyl group having 1 to 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, formyl, alkoxy having 1 to 6 carbon atoms, alkyloxycarbonyl having 1 to 6 carbon atoms, or heterocyclic ring selected from the group consisting of 2-furyl, 2-tetrahydrofuryl, 2-thienyl, 1,3-dioxolan-2-yl, 1,3-dioxinan-2-yl, morpholino, and 2-pyridyl; a cycloalkyl group having 3 to 8 carbon atoms; an aralkyl group having 7 to 11 carbon atoms; an alkenyl group having 3 to 6 carbon atoms; an alkynyl group having 3 to 6 carbon atoms; a phenyl group which is unsubstituted or substituted by halogen, alkyl having 1 to 12 carbon atoms, trifluoromethyl, or nitro; an alkyloxy group having 1 to 6 carbon atoms; a cycloalkyloxy group having 3 to 8 carbon atoms; an aralkyloxy group having 7 to 11 carbon atoms; an alkenyloxy group having 3 to 6 carbon atoms; an alkynyloxy group having 3 to 6 carbon atom; or a phenyloxy group; R 4 is a hydrogen atom; R 5 is a 4-trifluoromethyl phenyl group which is unsubstituted or substituted by a halogen atom or nitro; and Y is an oxygen atom or a sulfur atom.