Zstituto di Chimica Farmaceutica, Zstituto Policattedra di Discipline Biologiche, and Istituto di Chimica Organica, Facoltd di Farmacia, Uniuersitd di Pisa, 56100 Pisa, Italy. Received March 21, 1988 endo-3-Amino-exo-2-(3, 4-dihydroxyphenyl)-2-hydroxybicyclo [2.2. l] hep~ e (4a) and its N-isopropyl derivative (4b) were synthesized and assayed for their adrenergic activity on various isolated preparations. Compounds 4a and 4b, tested up to a dose of la- ...