波谱学杂志

• 研究论文 • 上一篇    下一篇

利用NMR测定盐酸头孢吡肟中杂质的含量

施燕红,刘松柏,宋国强*   

  1. 中国科学院上海药物研究所,上海 201203
  • 收稿日期:2003-03-17 修回日期:2003-05-06 出版日期:2003-09-05 发布日期:2003-09-05
  • 作者简介:施燕红(1977-),女,浙江绍兴人,硕士研究生,从事药物分析专业. *通讯联系人:宋国强,电话:021-50806600-3119

MEASUREMENT OF THE PERCENTAGE OF IMPURITY IN CEFEPIME DIHYDROCHLORIDE BY NMR

SHI Yan-hong, LIU Song-bai, SONG Guo-qiang*   

  1. Shanghai Institute of Materia Medica, The Chinese Academy of Sciences, Shanghai  201203, China
  • Received:2003-03-17 Revised:2003-05-06 Online:2003-09-05 Published:2003-09-05
  • About author:*Correspondence author:Song Guo-qiang, Tel:021-50806600-3119

摘要:

头孢吡肟是具有广谱抗菌活性的第四代头孢菌素抗生素,在合成过程中往往伴随同分异构体杂质的生成. 为了进行质量控制,本文利用各种NMR技术对盐酸头孢吡肟及杂质进行了1H和13C的谱线归属,并测定杂质的含量为30.39%.

关键词: 核磁共振, 盐酸头孢吡肟, 杂质含量

Abstract:

Cefepime is a fourth-generation cephalosporin with an extended spectrum of antibacterial activities. The isomeric compounds of Cefepime produced durin
g synthesis are generally considered impurity of the drug. 1D and 2D NMR methods were used in this study to measure the percentage of the impurity in the Cefepime dihydrochloride sample as a measure of quality control. The 1H and 13C resonance of both Cefepime dihydrochloride and the impurity were assigned, and the percentage of the impurity was determined to be 30.39%.

Key words: NMR, cefepime dihydrochloride, percent of the impurity

中图分类号: