Abstract: This invention concerns the compounds of formula (I), the pharmaceutically acceptable salts and stereoisomeric forms thereof, and also the N-oxide forms thereof. ##STR1## wherein: R.sup.1 and R.sup.2 each independently are hydrogen; C.sub.1-6 alkyl; C.sub.1-6 alkylcarbonyl; trihalomethylcarbonyl; C.sub.1-6 alkyl substituted with hydroxy, C.sub.1-6 alkyloxy, carboxyl, C.sub.1-6 alkylcarbonyloxy, C.sub.1-6 alkyloxycarbonyl or aryl; or R.sup.1 and R.sup.2 taken together with the nitrogen atom to which they are attached may form a morpholinyl ring or an optionally substituted heterocycle; R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.9, R.sup.10, R.sup.11 or R.sup.12 each independently are hydrogen, halo, cyano, hydroxy, trifluoromethyl, trifluoromethoxy, carboxyl, nitro, amino, mono- or di(C.sub.1-6 alkyl)-amino, C.sub.1-6 alkylcarbonylamino, aminosulfonyl, mono- or di(C.sub.1-6 alkyl)-aminosulfonyl, C.sub.1-6 alkyl, C.sub.1-6 alkyloxy, C.sub.1-6 alkylcarbonyl, C.sub.1-6 alkyloxy-carbonyl; R.sup.7 and R.sup.

Abstract: Isonicotinic acid derivatives and related furo-, thieno- and pyrrolo[3,4-c]pyridin-1(3H)-one, -thione and -imine compounds having the formula ##STR1## wherein R is ##STR2## Q is O, S or NR.sup.7 ; Y is O, S or NR.sup.8 ; L is COOR.sup.9, CONR.sup.10 R.sup.11, C(.dbd.S)NR.sup.10 R.sup.11, CN, or a radical of formula ##STR3## the acceptable addition salts, the stereochemically isomeric forms and the N-oxides thereof, having herbicidal properties, compositions containing the same and methods for controlling weeds.

Abstract: Compounds of the class of salicylanilides substituted in the 4-position of the anilino moiety with a --CH(CN)-Ar group wherein Ar is phenyl, substituted phenyl, thienyl, halothienyl or naphthalenyl, said salicylanilides being useful as parasiticides.