Abstract: The present invention concerns benzodioxane-piperidine with general formula I: wherein notably: R1 represents one or more identical or different substituent(s) on the benzene ring, each independently representing a hydrogen or halogen atom, or a C1-4 alkyl group, or a C1-4 alkoxy group or a C1-4 hydroxyalkyl group or a C1-4 alkylcarbonyl or an alkoxycarbonyl group or an OH group or an SO2R group with R alkyl, or a CN group, or a CF3 group, or an OCF 3 group; n=1, 2 or 3; m=0 or 1, and R2 represents one or more identical or different substituent(s) on the oxazolidinone or morpholinone ring, each independently representing: a hydrogen atom, a C1-4 alkyl group, or a C1-4 alkoxy group, or a C1-4 hydroxyalkyl group, or an alkylcarbonyl group, or an alkoxycarbonyl group, or an alkoxyphenyl group.

Abstract: 1,4-disubstituted piperidines of formula 1: ##STR1## as well as the therapeutically acceptable salts of these molecules. The invention also relates to the application in therapy of the compounds of the general formula 1.

Abstract: New urea derivatives corresponding to the general formula 1 ##STR1## in which: R.sup.1 represents a C.sub.1 -C.sub.4 alkyl group;R.sup.2 represents:a C.sub.5 -C.sub.7 cycloalkyl groupa cycloalkylmethyl group in which the cycloalkyl radical contains from 5 to 7 carbon atomsa benzyl groupa benzyl group in which the aromatic ring bears a C.sub.1 -C.sub.4 alkyl group, a C.sub.1 -C.sub.4 alkoxy group, a halogen atom or a nitro group;A represents an oxygen atom or a methylene radical;n represents 1 or 2;X represents an oxygen or sulfur atom;B represents a direct bond, a methylene radical or a carbonyl radical;as well as the therapeutically acceptable salts of these molecules.The invention also relates to the application of the compounds of general formula 1 in therapy, and to the preparation processes.