Asymmetric Total Synthesis of Fusarentin 6-Methyl Ether and Its Biomimetic Transformation into Fusarentin 6,7-Dimethyl Ether, 7-O-Demethylmonocerin, and (+)-Monocerin

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• 作者：Bowen Fang ; Xingang Xie ; Changgui Zhao ; Peng Jing ; Huilin Li ; Zhengshen Wang ; Jixiang Gu ; Xuegong She
• 刊名：The Journal of Organic Chemistry
• 出版年：2013
• 出版时间：June 21, 2013
• 年：2013
• 卷：78
• 期：12
• 页码：6338-6343
• 全文大小：356K
• 年卷期：v.78,no.12(June 21, 2013)
• ISSN：1520-6904

文摘

A 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 intermediate, which was obtained by benzylic oxidation of fusarentin 6-methyl ether (1) using hypervalent iodine reagent.