compounds 1a ( lr-18,460 , 3- [ 2- [ 2- ( diethylamino ) ethoxy ] phenoxy ] -4-phenyl-3-buten-2-one ) and 1h ( lr-18,795 , 3- [ 2- [ 3- ( dimethylamino ) propoxy ] phenoxy ] -4-phenyl-3-buten-2-one ) were submitted to further antiarrhythmic testing , which confirmed their effectiveness and superiority to quinidine in all the experiments .
C0003195
antiarrhythmic
C0034414
quinidine