
A compound of formula (I), ##STR1## an acid or base addition salt thereof or a stereochemically isomeric form thereof, wherein A and B taken together form --N.dbd.CH--, --CH.dbd.N--, --CH.sub.2 --CH.sub.2, CH.dbd.CH--, --C(.dbd.O)--CH.sub.2 --, --CH.sub.2 --C(.dbd.O); D is a radical of formula ##STR2## L is a radical of formula ##STR3## Alk is a C.sub.1-4 alkanediyl radical; R.sup.1 is halo; R.sup.2 is hydrogen or halo; R.sup.3 is hydrogen, C.sub.1-6 alkyl, phenyl or halophenyl; R.sup.4 is hydro...










