| 摘要 |
<p>The present invention is directed to an enantioselective synthesis of 1,3,4,6,7,12b(S)-hexahydro-2H-benzo[b]furo[2,3-a]quinolizin-2-one of formula <CHEM> which is an intermediate in the production of the alpha 2-adrenergic antagonist (2R,12bS)-N-(1,3,4,6,7,12-hexahydro-2H-benzo[b]furo[2,3-a]quinolizin-2 -yl)-N-Y# methyl-2-hydroxy-ethanesulfonamide hydrochloride.</p> |
