Patent ID: 6372774
Filing Date: 2002-04-16
Classification: A01N,A61K,C07D,C07F

Abstract:
A compound of the formula: wherein:R1 represents straight- or branched-chain alkyl having from 1 to 4 carbon atoms which is unsubstituted or substituted by one or more halogen atoms; R2 is halogen, cyano, nitro, cycloalkyl having from 3 to 5 carbon atoms, straight- or branched-chain alkenyl having from 2 to 6 carbon atoms, thiocyanato, sulphamoyl which is unsubstituted or substituted by one or two straight- or branched-chain alkyl which are the same or different and have from 1 to 6 carbon atoms, carbamoyl which is unsubstituted or substituted by one or two straight- or branched-chain alkyl which are the same or different and have from 1 to 6 carbon atoms, straight- or branched-chain alkoxycarbonyl having from 2 to 7 carbon atoms, straight- or branched-chain alkanoyl having from 2 to 7 carbon atoms, or straight- or branched-chain alkyl having from 1 to 6 carbon atoms which is unsubstituted or substituted by one or more halogen atoms; R3 represents hydrogen, or an amino group â€”NRâ€³Râ€²â€³ wherein Râ€³ and Râ€²â€³, which are the same or different, each represents hydrogen, straight- or branched-chain alkenylalkyl or alkynylalkyl having up to 5 carbon atoms, straight- or branched-chain alkyl having from 1 to 6 carbon atoms, and which are unsubstituted or substituted by straight- or branched-chain alkoxycarbonyl of 2 to 5 carbon atoms, formyl, or straight- or branched-chain alkanoyl having from 2 to 7 carbon atoms and being unsubstituted or substituted with one or more halogen atoms; or Râ€³ and Râ€²â€³, together with the nitrogen atom to which they are attached, form a 5 or 6 membered cyclic imide unsubstituted or substituted by one or more halogen atoms; or R3 represents straight- or branched-chain alkoxycarbonyl having from 2 to 7 carbon atoms and being unsubstituted or substituted by one or more halogen atoms, or R3 represents straight- or branched-chain alkoxymethyleneamino having from 2 to 5 carbon atoms which is unsubstituted or substituted on methylene by a straight- or branched-chain alkyl having from 1 to 4 carbon atoms; or R3 represents halogen, cycloalkyl having from 3 to 6 carbon atoms, cycloalkylcarbonyl having from 4 to 7 carbon atoms or straight- or branched-chain alkoxycarbonyl having from 2 to 7 carbon atoms and which are unsubstituted or substituted by one or more halogen atoms; or R3 represents straight- or branched-chain alkylsulphenylamino having from 1 to 4 carbon atoms, straight- or branched-chain alkoxymethyleneamino having from 2 to 5 carbon atoms which is unsubstituted or substituted on methylene by a straight- or branched-chain alkyl having from 1 to 4 carbon atoms; or R3 represents straight- or branched-chain alkyl having from 1 to 4 carbon atoms, carboxy, or straight- or branched-chain alkylthio, alkylsulphinyl or alkylsulphonyl having from 1 to 6 carbon atoms which is unsubstituted or substituted by one or more halogen atoms; or R3 represents straight- or branched-chain trialkylsilylmethyl having from 1 to 6 carbon atoms in each alkyl portion which are the same or different, trialkylsilyl having from 1 to 6 carbon atoms in each alkyl portion which are the same or different, or a cyano or nitro group; and R4, R5, R6, R7 and R8 are the same or different and represent halogen, straight- or branched-chain alkyl or alkoxy having from 1 to 4 carbon atoms which is unsubstituted or substituted by one or more halogen atoms, straight- or branched-chain alkylthio or alkylsulphinyl having from 1 to 4 carbon atoms which is substituted by one or more halogen atoms, nitro, cyano or straight- or branched-chain alkylsulphonyl having from 1 to 4 carbon atoms which is unsubstituted or substituted by one or more halogen atoms.