Enantioselective syntheses and X-ray structures of (S)- and (R)-N-norlaudanidine: trace opium constituents
作者:Ahmed L. Zein、Otman O. Dakhil、Louise N. Dawe、Paris E. Georghiou
DOI:10.1016/j.tetlet.2009.10.114
日期:2010.1
The enantioselective synthesis of each of the enantiomers of N-norlaudanidine, a minor Papaver somniferum opium benzyltetrahydoisoquinoline alkaloid is described. This was achieved using a chiral auxiliary-mediated Bischler–Napieralski cyclization-sodium borohydride reduction strategy. The X-ray crystal structures of each of these secondary amines are reported.