Enantioselective Synthesis of the 3C-Protease Inhibitor (-)-Thysanone by a Staunton-Weinreb Annulation Strategy
作者:Margaret Brimble、Jonathan Sperry、Tsz Yuen
DOI:10.1055/s-0029-1217390
日期:2009.8
The total synthesis of (-)-thysanone is described. The key step involves the addition of an o-toluate anion to a lactone to create the naphthopyran framework (Staunton-Weinreb annulation). This synthesis further confirms the absolutestereochemistry of the natural product to be 1R,3S. thysanone - Staunton-Weinreb annulation - total synthesis - natural products - polycycles
Simple syntheses of (+)-orthosporin and (−)-semivioxanthin methyl ether
作者:V.H. Deshpande、Beena Rai、R.A. Khan
DOI:10.1016/0040-4020(96)00333-x
日期:1996.5
Simple syntheses of (+)-orthosporin(1) and (−)-semivioxanthin methyl ether (11) are described from (S)-ethyl3-hydroxybutyrate (5) and orsellinic acid derivatives 3 and 4 respectively.