Abstract The synthesis of the title compound II was carried out from 5-chloro-3-(4- chlorophenyl)-2, 1-benzisoxazole (III) by two methods proceeding via new intermediates V and VI. 5-(2-Fluorophenyl)-1, 3-dihydro-1, 4-benzodiazepin-2-one (VII) was synthesized from 2-amino-2'-fluorobenzophenone via VIII.