title: [Naphthofuran derivatives with potential beta-adrenolytic activity].
abstract: 1-(Naphtho[1,2-b]furan-2-yl)-2-(isopropylamino)ethanol (II) and 1-(naphtho[2,3-b]furan-2-yl)-2-(isopropylamino)ethanol (III) show low beta-adrenergic blocking activity and unlike the naphtho [2,1-b]furan derivatives (1,2) do not appear to give rise to metabolites with high beta-adrenoceptor inhibitory properties. The inclusion of the --OCH2-- moiety in an aromatic nucleus larger than the benzofuran system (bufuralol, Ro 3-3528) caused loss of the biological activity.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000138:chemical synthesis*; D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D005663:Furans / Q000138:chemical synthesis* / Q000494:pharmacology; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000319:Adrenergic beta-Antagonists; D005663:Furans
vernacular_title: Derivati naftofuranici a possibile azione beta-adrenolitica.