A De Novo Stereocontrolled Approach to<i>syn</i>- and<i>anti</i>-Disubstituted Acyclic β<sup>2,3</sup>-Amino Acid Enantiomers
作者:Maria Cherepanova、Loránd Kiss、Enikő Forró、Ferenc Fülöp
DOI:10.1002/ejoc.201301281
日期:2014.1
aminocyclopent-3-enecarboxylates, which were derived from a racemic bicyclic β-lactam. The synthetic strategy involves the stereoselective dihydroxylaton of the C–C double bond of the cyclopentene β-amino esters. The subsequent NaIO4-mediated ring cleavage affords dialdehyde intermediates that undergo functionalization by a Wittig reaction.
对映体纯形式的官能化无环 β2,3- 氨基酸衍生物的立体控制合成是从对映体纯的顺式和反式-2-氨基环戊-3-烯羧酸盐开始进行的,这些化合物来源于外消旋双环 β-内酰胺。合成策略涉及环戊烯β-氨基酯的C-C双键的立体选择性二羟基化。随后的 NaIO4 介导的环裂解提供了通过 Wittig 反应进行功能化的二醛中间体。