胺碘酮代谢(第一部分):一个新的胺碘酮羟化代谢物的识别。
文章的细节
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引用
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哈人力资源,Bigler L,粘结剂M, Kozlik P, B斯蒂格·海塞米,Altorfer人力资源,Follath F
胺碘酮代谢(第一部分):一个新的胺碘酮羟化代谢物的识别。
药物金属底座Dispos。2001年2月,29 (2):152 - 8。
- PubMed ID
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11159805 (在PubMed]
- 文摘
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未标记的:胺碘酮(AMI)是一种有效的抗心律失常的药物,但其新陈代谢尚未完全文档化。Mono-N-desethylamiodarone (MDEA)是唯一已知的代谢物。我们的初步调查使用兔肝微粒体表明,体外AMI biotransformed MDEA,而后者迅速进一步生物降解其它未知的产品。本研究的目的是调查MDEA的biotransformed化合物的化学结构。在孵化MDEA兔肝微粒体和NADPH作为辅因子,MDEA biotransformed分成三个未知产品:X1, X2, X3。产品是使用色谱纯化。主要产品的化学结构,X1,详细研究。HPLC-ESI-MS透露,MDEA充氧。Hydrogen-deuterium交换实验表明,X1分子包含一个可交换的氢原子超过其前身MDEA表明MDEA羟化。质/ MS分析结果进一步表明,羟基化的网站正丁基侧链。 NMR analysis (1H NMR, one-dimensional-total correlation spectroscopy, and heteronuclear multiple-bond correlation spectroscopy) established the 3-position (omega-1) of the butyl moiety as the specific carbon atom that is hydroxylated. Rat liver microsomes were also able to catalyze MDEA hydroxylation. Compound X1, as analyzed by HPLC-ESI-MS and ESI-MS/MS, was detected in the liver, heart, lung, and kidney tissue of four rats receiving AMI, suggesting that the hydroxylated MDEA was a secondary metabolite of AMI. CONCLUSION: in mammals, MDEA is hydroxylated to the secondary metabolite of AMI [2-(3-hydroxybutyl)-3-[4-(3-ethylamino-1-oxapropyl)-3,5-diiodobenzoyl]-benzofuran ].
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