Asymmetric synthesis of a dopamine D1 agonist, dihydrexidine from d-serine
摘要:
A scalable asymmetric synthesis of trans-2-amino-6,7-dimethoxy-1-phenyltetralin 2 and its N-nosyl derivative 12 have been achieved from Garner aldehyde derived from easily available D-serine using a stereoselective PhMgBr addition, Wittig reaction and TFA-mediated Friedel-Crafts cyclization as the key steps. The synthesis of dihydrexidine is accomplished from the N-nosyl-2-amino-1-phenyltetralin 12. (C) 2011 Elsevier Ltd. All rights reserved.
Asymmetric synthesis of the dopamine D1 agonist, dihydrexidine
摘要:
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.