Formal Total Synthesis of Brevisamide by Using a Tandem Isomerization/C-O and C-C Bond Formation Reaction

被引:5
|
作者
Banoth, Shivalal [1 ]
Maity, Saurabh [1 ]
Kumar, Sudheer R. [1 ]
Yadav, J. S. [1 ]
Mohapatra, Debendra K. [1 ]
机构
[1] CSIR Indian Inst Chem Technol, Nat Prod Chem Div, Hyderabad 500007, Andhra Pradesh, India
关键词
Natural products; Aldol reactions; Chiral auxiliaries; Iodocyclization; Olefination; DINOFLAGELLATE KARENIA-BREVIS; ASYMMETRIC ALDOL ADDITIONS; BREVETOXIN-B; STEREOSELECTIVE-SYNTHESIS; CURTIUS REARRANGEMENT; PTYCHODISCUS-BREVIS; CARBOXYLIC-ACIDS; BICYCLIC CORE; IODOCYCLIZATION; (+)-SORANGICIN;
D O I
10.1002/ejoc.201600142
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A highly stereoselective formal total synthesis of brevisamide is described that proceeds through a convergent pathway and utilizes our own tandem isomerization/C-O and C-C bond formation reaction as the key step to construct the trans-2,6-disubstituted dihydropyran ring system. Other significant reactions in this synthesis include an iodolactonization, a Crimmins-modified non-Evans syn aldol reaction, and a Horner-Wadsworth-Emmons olefination.
引用
收藏
页码:2300 / 2307
页数:8
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