申请人:Merck & Co., Inc.
公开号:US04348325A1
公开(公告)日:1982-09-07
Disclosed is methyl 3-azido-4-C-cyano-2,3,4,6-tetradeoxy-.alpha.-D-arabino-hexopyranoside and processes for its preparation from methyl 3-azido-2,3,6-trideoxy-.alpha.-D-arabino-hexopyranoside via the 4-bromo-4-deoxy intermediate; wherein the two inversions of configuration at C-4 result in a net retention of the .alpha.-D-arabino stereochemistry.
本发明公开了甲基3-叠氮基-4-C-氰基-2,3,4,6-四去氧-.alpha.-D-阿拉比诺-己糖苷及其制备方法,通过从甲基3-叠氮基-2,3,6-三去氧-.alpha.-D-阿拉比诺-己糖苷经4-溴-4-去氧中间体制备;其中在C-4处的两次构型反转导致了.阿尔法.-D-阿拉比诺立体化学的净保留。