申请人:Starks Associates, Incorporated
公开号:EP0072977A1
公开(公告)日:1983-03-02
An improved multi-step process for the production of 2-β-D-ribofuranosylthiazole-4-carboxamide:
2,3,5-Tri-O-benzoyl-D-ribofuranosyl bromide
2,3,5-Tri-O-benzoyl-β-D-ribofuranosyl cyanide
2,5-Anhydro-3,4,6-tri-O-benzoyl-D-allonthioamide
Thiazole-4-carboxylic acid 2-(2',3',5'-tri-O-benzoyl-β-D-ribofuranosyl)-, ethyl ester
2-β-D-ribofuranosylthiazole-4-carboxylic acid, methyl ester
2-β-D-ribofuranosylthiazole-4-carboxamide
生产 2-β-D-ribofuranosylthiazole-4-carboxamide 的改进型多步骤工艺:
2,3,5-三-O-苯甲酰基-D-呋喃核糖溴化物
2,3,5-三-O-苯甲酰基-β-D-呋喃核糖氰化物
2,5-脱水-3,4,6-三-O-苯甲酰基-D-异戊酰胺
噻唑-4-羧酸 2-(2',3',5'-三-O-苯甲酰基-β-D-呋喃核糖基)-乙酯
2-β-D-呋喃核糖基噻唑-4-甲酸甲酯
2-β-D-呋喃核糖基噻唑-4-甲酰胺