title: Beta 1-selective adrenoceptor antagonists: examples of the 2-[4-[3-(substituted-amino)-2-hydroxypropoxy]phenyl]imidazole class.
abstract: A series of 2-[4-[3-(substituted-amino)-2-hydroxypropoxy]phenyl]imidazoles is described. The compounds were investigated in vitro for beta-adrenoceptor antagonism, and several examples were found to be selective for the beta 1-adrenoceptor. The structure--activity relationship exhibited by this series of compounds is discussed. (S)-2-[p-[3-[[2-(3,4-dimethoxyphenyl)ethyl]amino]-2-hydroxypropoxy]phenyl]-4-(2 -thienyl)imidazole [(S)-13] was over 100 times more selective than atenolol for the beta 1-adrenergic receptor and has been selected for in-depth studies.
mesh_terms: D000316:Adrenergic alpha-Agonists / Q000138:chemical synthesis*; D000818:Animals; D005260:Female; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects / Q000502:physiology; D007093:Imidazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D007202:Indicators and Reagents; D007545:Isoproterenol / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D011941:Receptors, Adrenergic / Q000138:chemical synthesis*; D011943:Receptors, Adrenergic, beta / Q000138:chemical synthesis* / Q000494:pharmacology; D013329:Structure-Activity Relationship
chemical_list: D000316:Adrenergic alpha-Agonists; D007093:Imidazoles; D007202:Indicators and Reagents; D011941:Receptors, Adrenergic; D011943:Receptors, Adrenergic, beta; D007545:Isoproterenol