the affinities of the ( + ) and ( - ) enantiomers of the antimuscarinic benzothiazepinone derivative , cis-2,3-dihydro-3- ( 4-methyl-1-piperazinylmethyl ) -2-phenyl-1,5-benzoth iazepin-4 ( 5h ) -one ( btm-1041 and btm-1086 ) , for muscarinic receptor subtypes , histamine h1-receptors and alpha 1-adrenoceptors were determined in vitro using isolated organs : field-stimulated rabbit vas deferens ( m1-receptors ) , guinea-pig left atrium ( m2-receptors ) , guinea-pig ileum ( m3- and histamine h1-receptors ) and rat vas deferens ( alpha 1-adrenoceptors ) .
C0034826
muscarinic receptor
C0384752
m2-receptors