Asymmetric Eschenmoser−Claisen Rearrangement for Anti-β-Substituted γ,δ-Unsaturated Amino Acids
作者:Hongchang Qu、Xuyuan Gu、Zhihua Liu、Byoung J. Min、Victor J. Hruby
DOI:10.1021/ol701704h
日期:2007.9.1
synthetic building blocks in organic synthesis and for peptidomimetics. A novel asymmetric Eschenmoser-Claisen rearrangement with use of a C2-symmetric chiral auxiliary was developed to generate this type of amino acid. Excellent diastereoselectivities and high enantioselectivities (87-93% ee) were obtained after the chiral auxiliary was removed via iodolactonization/zinc reduction.