| abstract |
Benzanilide derivatives of formula (I) wherein R1 represents alkyl, optionally interrupted by one or more hetero atoms, X1 represents oxygen, sulphur or -NR5- wherein R5 represents hydrogen or alkyl or alkanoyl optionally substituted by halogen, R2 represents hydrogen or alkyl, R3 represents alkyl, alkoxy, alkylthio, dimethylamino or a heterocyclo group containing at least one nitrogen atom and linked via that nitrogen atom to the rest of the molecule, or a halogen atom, and R4 represents alkyl containing up to 10 carton atoms, optionally containing one or more carbon-carbon double or triple bonds, and optionally interrupted by one or more hetero atoms. |