第 45 卷第 5 期Vol. 45 No. 5
2015 年 10 月Oct 2015

所属栏目:医药及中间体

4-甲基-2-(3-甲酰基-4-羟基苯基)-5-噻唑甲酸乙酯的合成工艺改进
韩保嘉,杨 帆,吕昕颖,周淑晶* (佳木斯大学 药学院,黑龙江 佳木斯 154007)
摘 要:以对羟基苯甲醛为原料,经氰化、硫代酰胺化、环合、甲酰化合成得非布索坦中间体4-甲基-2-(3-甲酰基-4-羟基苯基)-5-噻唑甲酸乙酯。对合成工艺进行了改进,总收率52.4%。合成方法简单易行,对仪器设备腐蚀性小,操作安全,节约成本,适于工业化生产。
关键词:对羟基苯甲醛;5-噻唑甲酸乙酯;硫氢化钠;冰乙酸;工艺改进
中图分类号:R914.5  文献标识码:A  文章编号:1009-9212(2015)05-0022-04
Synthesis of 4-Methyl-2-(3-formyl-4-hydroxyphenyl)-5-thiazole Formic Acid Ethyl Ester
HAN Bao-jia, YANG Fan, L?譈 Xin-ying, ZHOU Shu-jing* (Jiamusi University, College of Pharmacy, Jiamusi 154007, China)
Abstract:4-Methyl-2-(3-formyl-4-hydroxyphenyl)-5-thiazole formic acid ethyl ester was synthesized by using p-hydroxybenzaldehyde as raw material through the following reactions including cyanide, thioamide, cyclization, and formylation reaction. A total yield of 52.4% was achieved due to improvement on the technology of febuxostat intermediate synthesis. In addition, the structures of the intermediates and target compound were confirmed by 1H NMR. The research results indicated that this synthesis method had the advantages including simple, less corrosive to equipment, high safety and low cost, and was suitable for industrial production.
Key words:p-hydroxybenzaldehyde; 5-thiazole formic acid ethyl ester; acetic acid; process improvement
基金项目: 佳木斯大学研究生科技创新重点项目(LZZ2014_031),黑龙江省大学生创新创业训练计划项目(201410222013)。
作者简介: 韩保嘉(1990-),男,黑龙江七台河人,硕士研究生,研究方向:药物设计合成及工艺优化(E-mail:1031822882@qq.com)。
联 系 人: 周淑晶,教授,研究方向:新药合成及工艺优化(E-mail:zhshj2003@163.com)。
收稿日期: 2015-09-2