(EN) Non-addictive N-substituted 6-oxamorphinans of the formula (FORMULA) having analgetic, narcotic antagonist, antitussive and ADH inhibiting properties and prepared by synthetic chemical procedures. (FR) Des 6-oxamorphinanes N-substitues, n"engendrant pas de toxicomanie, de formule generale: (FORMULE) ayant des proprietes analgesiques, antagonistes des narcotiques, antitussives et d"inhibition de l"hormone anti-diuretique (ADH) et prepares par synthese chimique.