Synthesis of (+)-Aptosimon, a 4-Oxofurofuran Lignan, by<i>erythro</i>Selective Aldol Condensation and Stereoconvergent Cyclization as the Key Reactions
作者:Satoshi YAMAUCHI、Munetoshi YAMAGUCHI
DOI:10.1271/bbb.67.838
日期:2003.1
The 4-oxofurofuran lignan, (+)-aptosimon (1), was synthesized from γ-butyrolactone (9). To construct the two benzylic chiral center of (+)-aptosimon (1), highly erythro selective aldol condensation and stereoconvergent SN1 intramolecular cyclization were used as the key reactions.
(+)-aptosimon (1) 是由γ-丁内酯 (9) 合成的 4-氧代呋喃木质素。为了构建(+)-aptosimon (1)的两个苄基手性中心,关键反应采用了高赤式选择性醛醇缩合和立体转化的 SN1 分子内环化。