| abstract |
AND THE PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF, ARE USEFUL AS BETA-ADRENERGIC RECEPTOR BLOCKING AGENTS IN THE TREATMENT OF CARDIAC ARRHYTHMIA. In the above formula R1 can be alkyl or arylalkyl and R2 and R3 can each be hydrogen, hydroxyl, alkoxy, or arylalkoxy. Those compounds wherein R1 is arylalkyl and at least one of R2 and R3 is other than hydrogen are novel, and constitute a part of this invention. Tetrahydronaphthalenes having the structure |