| abstract |
A method of producing new substitutednbenzoylurea derivatives or their salts with generalnFormula 1, wherein R 1 is hydrogen ornhalo each of R2 and R3 isnan alkyl group or R2 and R3 may form together withnadjacent nitrogen atom heterocyclic ring,nR4 is halogen, substituted or unsubstitutednalkyl, substituted or unsubstitutednan alkoxy group or a nitro group, and R5nrepresents a halogen atom characterized in that the compoundnof formula 2 in which A1 is -NCO orn-NH2, and R1, R2 and R3 are as defined above,nis reacted with a compound of formula 3 in whichnA2 is a -NH2 or -NCO group, with the restrictionnthat when A 1 is -NCO then A2nis the group -NH2 and when A 1 is the group -NH2,nthen A2 is -NCO and R4 and R5 havenmeaning given above. |