申请人:Monsanto Company
公开号:EP0423099A1
公开(公告)日:1991-04-17
Nojirimycin δ-lactam and deoxynojirimycin are each synthesized from 5,6-anhydro-3-O-benzyl-1,2-O-isopropylidene-L-idofuranose as a divergent intermediate by a method which comprises formation of the piperidine ring by connection of nitrogen between C-1 and C-5 with inversion of configuration at C-5 to form nojirimycin δ-lactam or between C-2 and C-6 with inversion of configuration at C-2.
Nojirimycin δ-内酰胺和 deoxynojirimycin 都是由 5,6-脱水-3-O-苄基-1,2-O-异亚丙基-L-异呋喃糖作为发散中间体合成的,合成方法包括通过在 C-1 和 C-5 之间连接氮并在 C-5 处反转构型形成哌啶环,从而形成 nojirimycin δ-内酰胺,或在 C-2 和 C-6 之间连接氮并在 C-2 处反转构型。