Enantioselective Synthesis of Deoxymannojirimycin Based on Sharpless Asymmetric Epoxidation of a Highly Functionalized Allylic Alcohol
作者:Marie-Céline Lamas、Max Malacria、Serge Thorimbert
DOI:10.1002/ejoc.201100102
日期:2011.5
An efficient enantioselective synthesis of deoxymannojirimicin is reported. It is based on the unusual Sharpless asymmetric epoxidation of a silyl-substituted allylic 1,4-amino alcohol coupled with a further highly stereoselective intramolecular aldolization. Both enantiomers of deoxymannojirimicin are available. An orthogonally protected polyhydroxylated piperidine was prepared, which could formally
报道了一种有效的对映选择性合成 deoxymannojirimicin。它基于甲硅烷基取代的烯丙基 1,4-氨基醇的不寻常的 Sharpless 不对称环氧化反应和进一步高度立体选择性的分子内醛醇缩合反应。deoxymannojirimicin 的两种对映异构体均可用。制备了一种正交保护的多羟基化哌啶,它可能正式导致该哌啶家族的其他成员。