作者:Narshinha Argade、Kishan Haval
DOI:10.1055/s-2007-983755
日期:——
Starting from citraconic anhydride, a three-step approach to fimbrolide congener is reported by taking the advantage of a regioselective Grignard reaction with an anhydride, followed by a dehydrative cyclization and double bromination-dehydrobromination sequence. Starting from N-(4-tolyl)maleimide, an eight-step synthesis of two natural fimbrolides is reported with good yields via the synthesis of requisite butylmaleic anhydride, its regioselective Grignard coupling reaction, and a bromination-dehydrobromination pathway.
报告以柠檬酸酐为起点,利用酸酐的区域选择性格氏反应的优势,通过脱水环化和双溴化-氢溴化顺序,分三步合成了芬布内酯同系物。从 N-(4-甲苯基)马来酰亚胺开始,通过合成所需的丁基马来酸酐、其区域选择性格氏偶联反应和溴化脱氢溴化途径,报告了八步合成两种天然芬布内酯的方法,并获得了良好的产率。