A series of 25 aryloxypropanolamines containing the 3-indolyl-tert-butyl [ie, l, l-dimethyl-2- (1H-indol-3-yl) ethyl] or substituted 3-indolyl-tert-butyl moiety as the N substituent is reported. These compounds have been tested for antihypertensive activity in spontaneously hypertensive rats (SHR),@-adrenergic receptor antagonist action in conscious normotensive rats, vasodilating activity in ganglion-blocked rats with blood pressure maintained by ...