Diasteroselective conjugate addition of diethylaluminum cyanide to a conjugated N-enoyl system: an alternative synthesis of (S)-pregabalin

被引:4
|
作者
Tovar-Gudino, Erika [1 ]
Morales-Nava, Rosmarbel [1 ]
Fernandez-Zertuche, Mario [1 ]
机构
[1] Univ Autonoma Estado Morelos, Ctr Invest Quim, Cuernavaca 62209, Morelos, Mexico
关键词
diethylaluminum cyanide; conjugate addition; chiral auxiliary; pregabalin; ENANTIOSELECTIVE SYNTHESIS; CONCISE SYNTHESIS; SOLVENT-FREE; PREGABALIN; ACYLATION; CATALYSTS; ENONES; ACID;
D O I
10.1139/cjc-2013-0397
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We have explored in this work the conjugate addition of diethylaluminum cyanide (Nagata's reagent) to an N-enoyl system bearing the (R)-4-phenyl-2-oxazolidinone chiral auxiliary. Since this method provided a practical synthesis of gamma-amino acids, we report the conjugate addition of diethylaluminum cyanide as the key step in the synthesis of (S)-pregabalin 1 in a five-step sequence of reactions from commercially available starting materials.
引用
收藏
页码:45 / 48
页数:4
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