Method for preparation of 2′-deoxy-2′, 2′-difluoro-β-cytidine or pharmaceutically acceptable salts thereof by using 1,6-anhydro-β-d-glucose as raw material
申请人:Shenzhen Hande Technology Co., Ltd.
公开号:US07214791B2
公开(公告)日:2007-05-08
The present invention provides a method for preparation of 2′-deoxy-2′,2′-difluoro-β-cytidine or pharmaceutically acceptable salt thereof, comprising starting from 1,6-anhydro-β-D-glucose as raw material, oxidizing, and fluorinating to obtain 2-deoxy-2,2-difluoro-D-ribofuranose as intermediate. The 2′-deoxy-2′,2′-difluoro-β-cytidine was finally prepared from the intermediate of 2-deoxy-2,2-difluoro-D-ribofuranose. The method is simple in operation and has a high yield. The method can effectively be used in large-scale production.
本发明提供了一种制备2'-脱氧-2',2'-二氟-β-胞嘧啶或其药学上可接受的盐的方法,包括以1,6-脱水-β-D-葡萄糖为原料,氧化和氟化以获得2-脱氧-2,2-二氟-D-核糖呋喃糖作为中间体。最终从2-脱氧-2,2-二氟-D-核糖呋喃糖的中间体制备2'-脱氧-2',2'-二氟-β-胞嘧啶。该方法操作简单,产率高。该方法可有效用于大规模生产。