Abstract: The present invention provides pyruvic acid oximes of the general formula: ##STR1## wherein R is a hydrogen atom, a C.sub.3 -C.sub.8 cycloalkyl, C.sub.1 -C.sub.6 alkoxy, cinnamyloxy, phenylamino, phenyl-N-alkylamino or phenylthio radical or an aryl or aryloxy radical, the aryl moiety of which can be substituted one or more times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, hydroxyl, trifluoromethyl, amino, acetylamino, nitrile, nitro or methylenedioxy, A is a straight-chained or branched, saturated or unsaturated aliphatic hydrocarbon chain containing up to 10 carbon atoms, which can be substituted one or more times by halogen or hydroxyl, and R.sub.1 is a C.sub.1 -C.sub.8 alkyl radical, which can be substituted one or more times by halogen, hydroxyl, nitrile, phenyl or carboxyl, or is a nitrile or formyl group, with the proviso that when R--A-- is a methyl or ethyl radical, R.sub.1 is not a methyl radical or a nitrile group and when R--A-- is a benzyl radical, R.sub.

Abstract: Phenyl-alkane-carboxylic acids of the formula ##STR1## wherein A is an aryl, aralkyl or arylvinyl radical optionally substituted by hydroxy, halogen, trifluoromethyl, alkyl, alkylthio, alkoxy, alkenyloxy, alkoxyalkoxy, alkyl-substituted amino, aryloxy or alkoxy-substituted aryloxy, or is an aryloxyalkyl or arylthioalkyl radical, or a heterocyclic ring system optionally substituted by halogen, alkyl or alkoxy,Y is a valency bond or an unbranched or branched lower alkylene radical containing up to 3 carbon atoms,X is a straight or branched, saturated or unsaturated divalent aliphatic hydrocarbon radical containing 2 to 8 carbon atoms, there being at least 2 carbon atoms between the benzene ring and the carboxyl group, andR is a hydrogen atom or a lower alkyl radical, as well as physiologically compatible salts, esters and amides thereof, exhibit hypoglycaemic and hypolipidaemic activity.

Abstract: A 2-hydrazonopropionic acid derivative of the formula ##STR1## wherein R is an aliphatic hydrocarbon radical, andX is a valency bond or a divalent aliphatic hydrocarbon radical containing up to 4 carbon atoms, with the proviso that when X is a valency bond, R cannot be saturated cycloalkyl, ora physiologically compatible salt, lower alkyl ester or amide thereof, which exhibit hypoglycaemic activity.

Abstract: An N-substituted carboxylic acid amide of the formula ##STR1## wherein A is a valency bond or an oxygen or sulphur atom or a methylene, ethylene, vinylene, ethyleneoxa or ethylenethia radical,V is a trivalent hydrocarbon radical containing up to 4 carbon atoms,R.sub.1 and R.sub.2 each independently is hydrogen, a halogen atom, a hydroxyl group or an alkyl or alkoxy radical,R.sub.3 is hydrogen, a hydroxyl group or an alkoxy radical,Y is an alkylene radical containing up to 3 carbon atoms,X is a valency bond or a divalent aliphatic hydrocarbon radical containing up to 6 carbon atoms, andD is a hydroxymethyl, formyl, free or esterified carboxyl or an N-substituted carbamoyl radical, or a physiologically compatible salt thereof, characterized by hypoglycaemic and hypolipidaemic activity.