申请人:Monsanto Company
公开号:US05200523A1
公开(公告)日:1993-04-06
Nojirimycin .delta.-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 .delta.-lactam or between C-2 and C-6 with inversion of configuration at C-2.
Nojirimycin .delta.-内酰胺和脱氧诺吉霉素是从5,6-去氧苯甲醇基-1,2-O-异丙基亚甲基-L-异戊糖醛作为分支中间体合成的,方法包括通过在C-1和C-5之间连接氮来形成哌啶环,并在C-5处反转构型以形成诺吉霉素.delta.-内酰胺或在C-2和C-6之间连接氮并在C-2处反转构型。