title: Beta-adrenoceptor studies. 5. 1H NMR and IR spectroscopic analysis of the conformation of the hydrohalide salts of beta-adrenoceptor-blocking aryloxypropanolamines. Evidence for a seven-membered ring structure with participation of two hydrogen bonds.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000138:chemical synthesis; D000818:Animals; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects; D006860:Hydrogen Bonding; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000037:antagonists & inhibitors; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D011412:Propanolamines / Q000138:chemical synthesis / Q000494:pharmacology; D013055:Spectrophotometry, Infrared; D013329:Structure-Activity Relationship; D014132:Trachea / Q000187:drug effects
chemical_list: D000319:Adrenergic beta-Antagonists; D011412:Propanolamines; D007545:Isoproterenol