非布司他的合成工艺

宋长江, 王云珑, 姚其玉, 虞海天, 张贵民

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主办:上海医药工业研究院
   中国药学会
   中国化学制药工业协会
ISSN 1001-8255   CN 31-1243/R   ZYGZEA
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中国医药工业杂志 ›› 2023, Vol. 54 ›› Issue (02) : 210-212. DOI: 10.16522/j.cnki.cjph.2023.02.007
研究论文

非布司他的合成工艺

  • 宋长江,王云珑,姚其玉,虞海天,张贵民
作者信息 +

Synthesis Process of Febuxostat

  • SONG Changjiang, WANG Yunlong, YAO Qiyu, YU Haitian, ZHANG Guimin
Author information +
History +

摘要

以4- 异丁氧基间苯二甲酸二甲酯(SM) 为原料,经胺解生成4- 异丁氧基间苯二甲酰胺(2),2 脱水生成4- 异丁氧 基间苯二甲腈(3),2 步收率87.9%。中间体3 和硫代乙酰胺加成后,与氯乙酰乙酸乙酯环合生成2-(3- 氰基-4- 异丁氧 基苯基) -4- 甲基-5- 噻唑甲酸乙酯(5),5 经碱性水解后酸化得到非布司他(1),总收率54.9% ( 以SM 计)。该工艺简 化了1 的合成路线,减少氰化物等剧毒品的使用,反应条件温和,适合1 的工业化生产。

Abstract

Using dimethyl 4-isobutoxyisophthalate(SM) as raw material to generate ammonolysis reaction for giving 4-isobutoxyisophthalamide(2), 4-isobutoxyisophthalonitrile(3) was generated by dehydration of 2, and the yield of this two-step reaction was 87.9%. After the addition of 3 and thioacetamide, it was cyclized with ethyl chloroacetoacetate to produce ethyl 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate(5), which was hydrolyzed in an alkaline solution and acidified to obtain febuxostat(1). The total yield was 54.9%(based on SM). The process simplifies the synthesis route of 1, reduces the use of cyanide and other highly toxic chemicals, and its reaction conditions are mild. It is suitable for industrial production of 1.

关键词

非布司他 / 黄嘌呤氧化酶抑制剂 / 化学合成

Key words

febuxostat / xanthine oxidase inhibitor / chemical synthesis

引用本文

导出引用
宋长江, 王云珑, 姚其玉, 虞海天, 张贵民. 非布司他的合成工艺. 中国医药工业杂志. 2023, 54(02): 210-212 https://doi.org/10.16522/j.cnki.cjph.2023.02.007
SONG Changjiang, WANG Yunlong, YAO Qiyu, YU Haitian, ZHANG Guimin. Synthesis Process of Febuxostat. Chinese Journal of Pharmaceuticals. 2023, 54(02): 210-212 https://doi.org/10.16522/j.cnki.cjph.2023.02.007

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