Abstract: New cyclic depsipeptides having 18 ring atoms, of the general formula (I) ##STR1## in which R represents hydrogen, straight-chain or branched or cyclic alkyl having up to 8 carbon atoms,and their optical isomers and racemates,and their use for combating endoparasites in the field of medicine and veterinary medicine.

Abstract: The invention relates to phosphoric acid derivatives of the formula (I) ##STR1## in which R represents optionally substituted alkyl;R.sup.1 represents optionally substituted alkyl;R.sup.2 represents optionally substituted alkyl or optionally substituted alkenyl;R.sup.3 represents optionally substituted C.sub.4 -C.sub.6 -alkyl;X represents oxygen or sulphur, andY and Z represent identical or different radicals from the series comprising hydrogen, halogen, alkyl and alkoxy,which can be used as pesticides.

Abstract: The present invention relates to the use of praziquantel and epsiprantel for enhancing the endoparasiticidal activity of cyclic depsipeptides in endoparasiticidal compositions.

Abstract: Substituted 1,2,4-oxadiazole derivatives of the formula (I) and their stereoisomers ##STR1## in which formula R.sup.1 represents hydrogen, C.sub.1-8 -alkyl which is optionally substituted by halogen, cycloalkyl, alkoxy, hydroxyl, aryl, alkylcarbonyl, alkoxycarbonyl and cycloalkyl,and their use as endoparasiticides.

Abstract: The invention relates to new substituted 1-arylpyrazoles of the general formula (I) ##STR1## to a plurality of processes for their preparation, and to their use as pesticides.

Abstract: The present invention relates to the use of open-chain tetradepsipepties of the formula ##STR1## in a method for combatting endoparasites in humans and animals.

Abstract: This invention relates to a method of combatting endoparasites which comprises administering an endoparasiticidally effective amount of a hexadepsipetide of the formula ##STR1## to a human or animal in need thereof.

Abstract: The present invention relates to the use of open-chain octadepsipeptides of the general formula (I) ##STR1## which are used for combating endoparsites in medicine and veterinary medicine.

Abstract: The present invention relates to the use of substituted 1,2,4-oxadiazole derivatives of the general formula I ##STR1## in which R.sup.1 represents hydrogen, alkyl which is optionally substituted by halogen, alkoxy, hydroxyl, amino, alkylamino, dialkylamino, cycloalkylamino as well as cycloalkyl, optionally substituted aryl or hetaryl,R.sup.2 represents hydrogen and alkyl,X represents O, S, SO, SO.sub.2 and N-R.sup.3,R.sup.3 represents hydrogen, alkyl, alkylcarbonyl or halogenoalkylcarbonylR.sup.

Abstract: The present invention relates to new substituted 1,2,4-oxadiazole derivatives of the formula (I) and to their stereoisomers ##STR1## in which formula R.sup.4 represents OH, SH, halogenoalkoxy, halogenoalkylthio, halogenoalkylsulphinyl, halogenoalkylsulphonyl, aryloxy, aralkoxy, arylthio, aralkylthio, alkylenedioxy, halogenoalkylenedioxy, amino, alkylamino, dialkylamino, acylamino, carbamoyl, alkylsulphinyl, alkylsulphonyl, arylsuphinyl, arylsulphonyl, sulphonylamino, alkoxycarbonyl, alkylcarbonyl, alkylcarbonyloxy, alkoxyalkyl, alkoxyalkoxy or hydroxyalkoxy, where in the event that at least one of the radicals R.sup.2 or R.sup.3 is other than hydrogen, R.sup.4 additionally represents halogen, alkyl, halogenoalkyl, alkoxy or thioalkyl, where, in the event that R.sup.1 represents optionally substituted C.sub.1-8 -alkyl, R.sup.4 additionally represents alkoxy,processes for their preparation, and their use as endoparasiticides.

Abstract: Novel substituted thieno[3,2-b]pyran-5,7-diones of the general formula (I) ##STR1## Processes for their preparation and their use as herbicides and as plant growth regulators and novel intermediates of the formula (VI) ##STR2## (in which R.sup.1, R.sup.2, X, Y and Z have the meaning given in the description).