Synthesis 2007(1): 55-60  
DOI: 10.1055/s-2006-958931
PAPER
© Georg Thieme Verlag Stuttgart · New York

An Effective Route to (-)-Aphanorphine Using d-Tyrosine as a Chiral Building Block

Min Li*a, Peijie Zhoua, Hans F. Rothb
a Department of Neurosciences, Georgetown University Medical Center, 4000 Reservoir Road NW, Washington DC 20057, USA
Fax: +1(202)6870617; e-Mail: ml258@georgetown.edu;
b Orgchem Technologies, Inc, 2201 W. Campbell Dr, Chicago, IL 60612, USA
Further Information

Publication History

Received 1 August 2006
Publication Date:
12 December 2006 (online)

Abstract

A stereoselective approach toward a naturally occurring alkaloid, (-)-aphanorphine, has been achieved via a series of reactions from Boc-d-tyrosine.

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Chiralcel OD-H column (100 × 4.6 mm), hexanes-i-PrOH (10: 90), 1.0 mL/min, 23 °C, λ = 276 nm, retention time 6.9 min (d-7) and 7.7 min (l-7).