Abstract: Derivatives of 3,3,5-trimethylcyclohexanol methyl-2-propionate, preparation method, and therapeutical compositions containing them. Such derivatives have general formula (I).

Abstract: Alkylcarboxamides of pyridylalkylamines, useful in human and verterinary medicine, correspond to the general formula I: ##STR1## wherein n=0 or 1,R.sub.3 represents an alkyl group of C.sub.1 to C.sub.3 or a hydrogen atom,R.sub.1 represents a hydrogen atom,R.sub.2 represents a group: ##STR2## in which: X and Y are different,X and Y each represent a linear or branched saturated or unsaturated hydrocarbon chain comprising from 1 to 16 carbon atoms;X and Y together determine a saturated or unsaturated cyclic radical substituted or not comprising from 3 to 12 carbon atoms.

Abstract: The present invention relates to novel antibacterial agents, corresponding to the following general formula I ##STR1## in which: Q represents an aromatic ring,X represents a hydrogen atom or a linear or branched alkyl group,Y represents a linkage or an alkyl group,Z represents a hydrogen atom, an alkyl, aralkyl or heteroalkyl group.These compounds constitute anti-bacterial agents with multiple pharmacological activity.

Abstract: The present invention relates to new N-acyl derivatives of amino acids.These derivatives correspond to the general formula I below: ##STR1## in which A represents a linear or branched, saturated hydrocarbon radical containing from 1 to 6 carbon atoms or a saturated ring containing 6 carbon atoms,X represents a --COOH radical, a --COOAlkyl radical (alkyl from C.sub.1 to C.sub.4), a hydrogen atom or a --CH.sub.3 group when Y is --COOH or --COOAlkyl,Y represents a --COOH radical, a --COOAlkyl radical (alkyl from C.sub.1 to C.sub.4), an --NH.sub.2 group, an --SH group, an --SCH.sub.3 group, a --NH--CH(.dbd.NH)--NH.sub.2 group, a substituted or unsubstituted phenyl group, an indolin-3-yl group or a 5-hydroxyindolin-3-yl group, andQ represents an optionally substituted aromatic ring or an optionally substituted heterocycle containing 1 or 2 nitrogen atoms.Drugs having an antiallergic action.