Asymmetric synthesis of the dopamine D1 agonist, dihydrexidine

A concise asymmetric synthesis of first, high affinity domaine D1 full agonist, dihydrexidine has been accomplished via catalytic enantioselective aziridination and subsequent one-pot Friedel-Crafts cyclization of an in situ generated tethered aziridine with high diastereo- and enantioselectivities. (C) 2011 Elsevier Ltd. All rights reserved.