由2-基乙乙基改性N1/N3-基丁的定向合成,并在暴露于硫的血中进行鉴定
Long Wen1,2, Zhibin Shu3, Li Pan1
1State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, P.R. China.
Communications chemistry
|March 8, 2025
概括
这项研究使用一种新的方法合成了硫 (HD) 的特定生物标志物,克服了同位素分离的挑战. 六化醇 (HFIP) 指导区域选择性化,使得精确的检测和量化,改善了HD暴露跟踪.
科学领域:
- 化学生物学 化学生物学
- 毒理学 毒理学 毒理学
- 有机合成 有机合成
背景情况:
- 硫 (HD) 是一种化学战剂,化生物分子,形成可检测的生物标志物.
- 传统方法在分离HD诱导的化区域异构体方面面临挑战,这阻碍了准确的分析.
研究的目的:
- 开发HD-化生物标志物的精密合成平台,特别是[N1-HETE]-His和[N3-HETE]-His.
- 阐明六化醇 (HFIP) 在指导硫酸化对希斯蒂丁的区域选择性的作用.
主要方法:
- 采用了占用移除策略,结合了固态障碍,电子效应和合成溶剂效应.
- 运用密度函数理论 (DFT) 计算来预测和理解HFIP对区域选择性的影响.
- 通过实验分析验证了计算预测,并开发了在等离子体中检测异构体的方法.
主要成果:
- 成功合成了[N1-HETE]-His和[N3-HETE]-His的区域异构体,克服了分离的困难.
- 证明HFIP通过调节histidine的硬质和电子环境来批判性地指导区域选择性化.
- 通过标准加法,在HD污染的血中实现了选择性检测和异构体的绝对量化.
结论:
- 建立了一个新的精密合成平台,用于硫的生物标志物.
- 提供了对HFIP在伊米达区域选择性中的作用的机制性见解,对药物化学和毒理学有价值.
- 追踪HD暴露,分析机制,临床诊断和开发抗药的高级功能.
相关概念视频
02:33Preparation and Reactions of Thiols
5.9K
Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
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01:23Amines to Sulfonamides: The Hinsberg Test
3.2K
The Hinsberg test is a method to identify primary, secondary and tertiary amines, named after its pioneer, Oscar Hinsberg. Here, amines are treated with benzenesulfonyl chloride, also known as the Hinsberg reagent, in the presence of an excess of aqueous base, followed by acidification. Based on the nature of the amines, different changes are observed.
Generally, a primary amine reacts with the Hinsberg reagent to produce an N-substituted benzenesulfonamide. The electron-withdrawing...
Generally, a primary amine reacts with the Hinsberg reagent to produce an N-substituted benzenesulfonamide. The electron-withdrawing...
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02:26Preparation and Reactions of Sulfides
4.7K
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
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