New methodology for the synthesis of enantiopure (3R,2aR)-(−)-3-phenyl-hexahydro-oxazolo[3,2-a]-pyridin-5-one: a synthesis of (S)-(+)-coniine
作者:J.L. Terán、D. Gnecco、A. Galindo、J. Juárez、S. Bernès、R.G. Enrı́quez
DOI:10.1016/s0957-4166(01)00063-5
日期:2001.3
A new and efficient methodology for the enantiopure synthesis of (3R,2aR)-(−)-3-phenyl-hexahydro-oxazolo[3,2-a]pyridin-5-one 3 starting from (1′R)-(−)-1-(2′-hydroxy-1′-phenyl-ethyl)-(1H)-pyridin-2-one 1 is described. In addition, the enantiospecific synthesis of (S)-(+)-coniine hydrochloride 6 in good yield from 3 is reported.
对于(3的对映体纯合成一个新的和有效的方法- [R,2A - [R - ( - ) - )-3-苯基-六氢-恶唑并[3,2-一个]吡啶-5-酮3从(1'开始- [R ) -描述了(-)-1-(2'-羟基-1'-苯基-乙基)-(1 H)-吡啶-2-酮1。另外,报道了对映体特异性地从(3)以高收率合成(S)-(+)-可可碱盐酸盐6。