Condensed diazepinones, processes for preparing them and pharmaceutical compositions containing these compounds

Abstract From the Canadian patent

There are descried new compounds of formula (I), (wherein B represents any one of the groups (S) (T) (U)'(V) (W);, I D represents any one of the groups (i) (ii) (iii), and , (iv) (v);, X1 and X2 each represents a =CH- group or if B, represents a group S, U or W, either or both of X1 and X2 may also represent a nitrogen atom; A1 represents a straight-chained or branched saturated C2-7 alkylene group;, A2 represents a straight-chained or branched saturated C1-5 alkylene group or, if in the 3-position relative to the nitrogen of the saturated heterocyclic ring A2 may also represent a single bond;, Z represent a single bond or an oxygen or sulphur, atom, or a methylene or 1,2-ethylene group R …