波谱学杂志 ›› 2005, Vol. 22 ›› Issue (3): 309-314.

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盐酸伐昔洛韦的波谱学研究

  

  1. 军事医学科学院 毒物药物研究所,北京 100850
  • 收稿日期:2005-01-31 修回日期:2005-04-28 出版日期:2005-09-05 发布日期:2005-09-05

Structure Elucidation of Valacyclovir Hydrochloride by NMR Spectroscopy and Mass Spectroscopy

  1. Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences,Beijing 100850,China
  • Received:2005-01-31 Revised:2005-04-28 Online:2005-09-05 Published:2005-09-05

摘要:

以嘌呤为原料合成盐酸伐昔洛韦(Valacyclovir hydrochloride),经乙酰化反应生成乙酰基嘌呤,水解后与侧链反应,钯碳存在下脱保护、成盐制得目标化合物. 采用1H NMR、13C NMR、DEPT、1H-1H COSY、HMQC、HMBC和MS等技术确证目标化合物的分子结构; 对其1H NMR、 13C NMR信号进行了全归属,MS的主要裂解途径和离子特征也与伐昔洛韦的分子结构相符. 

关键词: NMR, MS, 归属, 伐昔洛韦

Abstract:

Valacyclovir hydrochloride, 2-[(2-amino-1,6-dihydro-6-oxo- 9H-purine-9-yl)methoxy] ethyl-L-valinate  hydrochloride, was synthesized from purine through acetylation, hydrolysis, condensation and deprotection reactions. The structure of the target compound was elucidated by combined use of mass spectroscopy and 1D/2D NMR techniques including 1H  and 13C NMR, DEPT, 1H-1H COSY, HMQC and HMBC. The 1H and 13C chemical shifts of the compound were completely assigned.

Key words: NMR, mass spectroscopy, valacyclovir, chemical shift assignment

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