Riom Laboratories C.e.r.m.

Centre Europeen De Recherches Mauvernar

Andre Monteil

Jacques A Simond

Patrick Carlier

Jacques Moleyre

Roland Yves Mauvernay

Jacques Simond

Norbert Busch

The invention relates to compounds of the formula: ##STR1## and pharmaceutically acceptable salts thereof, in which X represents either --CH.dbd. or --N.dbd., R.sub.1 represents an alkyl radical having 1 to 5 carbon atoms, R.sub.2 represents hydrogen and R.sub.3 is an alkyl radical having 1 to 5 carbon atoms, or R.sub.2 and R.sub.3, together with the nitrogen atom to which they are bonded, represent a heterocyclic radical, such as pyrrolidinyl, morpholino, 4-phenyl-piperazinyl, in which the phenyl radical can carry one or more substituents, such as a halogen atom, an alkyl or alkoxy radical having 1 to 5 carbon atoms or the trifluoromethyl radical, or represents 4-(2-pyrimidinyl)-piperazinyl, having anti-bronchoconstrictory properties.

Aminoethyl-pyridine and pyrazine derivatives

6-Aryloxy-2-oxo-1-aza-4-oxa(or thia)-spiro [4,5]decane compounds. These compounds are represented by the formula: ##STR1## in which A stands for an oxygen or sulfur heteroatom; R.sub.1 and R.sub.2 are each H, lower alkyl or aryl such as phenyl; X is H, a halogen atom such as chlorine or fluorine or a lower alkyl. Compounds according to the invention are useful as stimulating agents for vigilance, as psycho-stimulators and genesic stimulators.

6-Aryloxy-2-oxo-1-aza-4-oxa (or thia)-spiro[4,5] decanes

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Andre Monteil