Enantioselective Syntheses of Aeruginosin 298-A and Its Analogues Using a Catalytic Asymmetric Phase-Transfer Reaction and Epoxidation
作者:Takashi Ohshima、Vijay Gnanadesikan、Tomoyuki Shibuguchi、Yuhei Fukuta、Tetsuhiro Nemoto、Masakatsu Shibasaki
DOI:10.1021/ja037290e
日期:2003.9.1
We developed a versatile synthetic process for aeruginosin 298-A as well as several attractive analogues, in which all stereocenters were controlled by a catalytic asymmetric phase-transfer reaction and epoxidation. Furthermore, drastic counteranion effects in phase-transfer catalysis were observed for the first time, making it possible to three-dimensionally fine-tune the catalyst (ketal part, aromatic
我们开发了一种通用的铜绿素 298-A 合成工艺以及几种有吸引力的类似物,其中所有立体中心都由催化不对称相转移反应和环氧化控制。此外,首次观察到相转移催化中强烈的反阴离子效应,使得对催化剂(缩酮部分、芳香部分和反阴离子)进行三维微调成为可能。