Stereocontrolled Synthesis of (<i>E</i>)-Olefin Dipeptide Isosteres using a [3,3] Allylic Trichloracetimidate Rearrangement
作者:Hassan Imogaï、Yves Petit、Marc Larchevêque
DOI:10.1055/s-1997-3221
日期:1997.5
The addition of Z-vinylic cuprates to enantiopure α-alkyl β-alkoxy aldehydes afforded syn allylic monoprotected diols in high diastereomerical purity. The sigmatropic rearrangement of trichloracetimidates derived from these monoprotected diols afforded protected allylic aminoalcohols which were oxidized into E-Alkene dipeptide isosteres.
将 Z-乙烯基铜酸盐加到对映体纯的δ-±-烷基δ-²-烷氧基醛中,可以得到非对映纯度很高的合成烯丙基单保护二元醇。由这些单保护二元醇衍生出的三氯乙酰亚氨酸的对称重排得到了受保护的烯丙基氨基醇,这些氨基醇被氧化成 E-烯二肽异构体。