Propranolol, an antihypertensive agent used in the treatment of high blood pressure, can b...

Propranolol, an antihypertensive agent used in the treatment of high blood pressure, can be prepared from 1 -naphthol, epichlorohydrin, and isopropylamine using two successive nucleophilic substitution reactions. Devise a stepwise synthesis of propranolol tram these starting materials.