Asymmetric Total Synthesis of Fusarentin 6-Methyl Ether and Its Biomimetic Transformation into Fusarentin 6,7-Dimethyl Ether, 7-<i>O</i>-Demethylmonocerin, and (+)-Monocerin
作者:Bowen Fang、Xingang Xie、Changgui Zhao、Peng Jing、Huilin Li、Zhengshen Wang、Jixiang Gu、Xuegong She
DOI:10.1021/jo400760q
日期:2013.6.21
concise asymmetric total synthesis of a fusarentin ether (1) with sequential biomimetic transformation to its analogues fusarentin 6,7-dimethyl ether (2), 7-O-demethylmonocerin (3), and (+)-monocerin (4) has been accomplished. The cis-fused furobenzopyranones of 7-O-demethylmonocerin (3) and (+)-monocerin (4) were efficiently constructed via an intramolecular nucleophilic trapping of a quinonemethide
一个简洁的不对称全合成富沙伦丁醚(1),并通过连续仿生转化为其类似物富沙伦丁6,7-二甲基醚(2),7- O-去甲基单甘油(3)和(+)-单甘油(4)。完成。7- O -demethylmonocerin (3)和(+)-monocerin(4)的顺式融合呋喃苯并吡喃酮通过分子内亲核捕获醌甲基化物中间体而有效构建,该中间体是通过fusarentin 6-甲基醚的苄基氧化反应制得的(1)使用高价碘试剂。