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卡马西泮的热不稳定代谢物的质谱分析

吕湘林, 杨宪桂   

  1. Department of Pharmacology, F.Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814-4799, USA
  • 收稿日期:1991-02-22 修回日期:1991-09-15 出版日期:1992-06-15 发布日期:1992-06-15

Mass Spectrometric Characterization of a Thermolabile Metabolite of Camazepam

Xiang-Lin Lu, Xian-Gui Yang   

  1. Department of Pharmacology, F.Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814-4799, USA
  • Received:1991-02-22 Revised:1991-09-15 Online:1992-06-15 Published:1992-06-15

摘要:

卡马西泮[3-(N, N-二甲基)氨甲酯-7-1-甲基-1, 3-二氢-5苯基-2-1, 4-苯并二氮草-2)经以鼠肝微粒体作体外代谢, 其主要代谢产物为3-(N-甲基-N-甲氧基)氨甲酯衍生物。此类代谢产物对热不稳定, 难以普通质谱技术测定。本文报道了用252Cf 等离子体解吸质谱法的分析结果。

关键词: 卡马西泮, 热不稳定代谢物, 高效液相色谱法, 质谱, 252Cf 等离子体解吸质谱法

Abstract: Incubation of camazepam [3-(N,N-dimethyl) carbamoyloxy-7-chloro-1-methyl-1,3-dihydro-5-phenyl-2H-1, 4-benzodiazepin-2-one] with rat liver microsomes and cofactors produced a 3-(N-methyl-N-hydroxymethyl) carbamoyloxy derivative as the most abundant metabolite. This metabolite was thermally unstable and was isolated from a metabolite mixture by normal-phase High-Performance Liquid Chromatography. Its structure was established by chemical ionization and 252Cf plasma desorption time-of-flight mass spectral analyses.

Key words: Camazepam, Thermally-labile metabolite, HPLC, Mass Spectra, 252Cf Plasma Desorption, Mass Spectrometry

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