Toward the total synthesis of tetrodotoxin: stereoselective construction of the 7-oxanorbornane intermediate

被引:10
|
作者
Manabe, Atsushi [1 ]
Ohfune, Yasufumi [1 ]
Shinada, Tetsuro [1 ]
机构
[1] Osaka City Univ, Grad Sch Sci, Sumiyoshi Ku, Osaka 5588585, Japan
关键词
Tetrodotoxin; Diels-Alder reaction; Nitroolefin; Furan; EFFICIENT TOTAL-SYNTHESIS; OPTICALLY-ACTIVE TETRODOTOXIN; ASYMMETRIC TOTAL-SYNTHESIS; STEREOCONTROLLED SYNTHESIS; DIELS-ALDER; CHEMICAL-SYNTHESIS; UNNATURAL ANALOG; D-GLUCOSE; 8,11-DIDEOXYTETRODOTOXIN; DERIVATIVES;
D O I
10.1016/j.tetlet.2014.09.036
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The stereoselective synthesis of 7-oxanorbornane regarding as a key synthetic intermediate of tetrodotoxin (TTX) is reported. The bicyclo ring bearing various functional groups was successfully elaborated by a furan Diels-Alder (DA) reaction. The stereoselective installation of a quaternary amino carbon center to the DA product was achieved with the Tsuji-Trost allylation. The stereochemistry was unambiguously confirmed with X-ray. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:6077 / 6080
页数:4
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