Stereoselective amination of chiral enolates: Synthesis of chiral key intermediates for β-lactam antibiotics
作者:Carlos Cativiela、María D. Díaz-de-Villegas、José A. Galvéz
DOI:10.1016/0957-4166(94)80114-2
日期:1994.8
Stereoselective enolate trapping of lithium (1S, 2R, 4R)- 10-dicyclohexylsulfamoylisobornyl-2-cyano-3-phenylpropanoate with O-(diphenylphosphinyl) hydroxylamine followed by appropriate reduction, hydrolysis, and cyclisation processes allows the asymmetric synthesis of (S)-3-amino-3-benzyl-2-azetidinone.
用O-(二苯基膦基)羟胺对锂(1S,2R,4R)-10-二环己基氨磺酰基异冰片基-2-氰基-3-苯基丙酸锂进行立体选择性烯醇捕获,然后进行适当的还原,水解和环化过程,可以不对称地合成(S)- 3-氨基-3-苄基-2-氮杂环丁酮。