METHOD OF PRODUCING DERIVATIVE SUBSTITUTED AMIDE

The invention provides novel substituted amides of formula: R-CONH-Het in which R is cycloalkyl, cyclohexadienyl, phenyl optionally substituted with one or 2 fluorine atoms or with a hydroxy radical, or substituted at position 3- or 4- with an alkyl or alkyloxy radical, or with a methylenedioxy radical at positions 3- and 4-, or at position 2- or 3- with a dialkylamino radical, or is 3-pyridyl, alkyloxy-3-pyridyl, thienyl, alkylthienyl, furyl, tetrahydropyridyl, pyridazinyl and alkylpyridazinyl, and Het is 2-quinolyl or 1,8-naphthyridin-2-yl, both optionally substituted at position 7- with a halogen atom or a hydroxymethyl, alkyl, alkyloxy, alkyloxyalkyloxy, alkenyloxy or alkynyloxy radical (of 3 or 4 carbon atoms), an alkylthio or benzylthio radical, a phenoxy radical which is optionally substituted (with fluorine, with chlorine or bromine at position 2-, or with an alkyloxy radical or 1 or 2 alkyl radicals) or with pyridyloxy or alkylpiperidyloxy, provided that, when Het is 2-quinolyl, R is other than phenyl, and that the radicals and alkyl portions contain 1 to 4 carbon atoms each in a linear or branched chain. The new products are useful as anxiolytics, hypnotics, anticonvulsants, antiepileptics and muscle relaxants. The invention also provides a process for the preparation of, and pharmaceutical compositions containing, the new compounds.