一种 - 马利胺用于产生新的向生物化学试剂
1Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
Journal of the American Chemical Society
|February 7, 2013
概括
-马利胺 (As-Mal) 有效地向细胞的醇. 这种新型试剂能够精确地将物种输送到蛋白质中,从而增强了急性前兆细胞白血病等疾病的治疗潜力.
科学领域:
- 药用化学 医学化学
- 生物化学 生物化学
- 毒理学 毒理学 毒理学
背景情况:
- 三氧化物在治疗急性肌肉细胞白血病方面显示出有效性,使人们重新对化合物的兴趣.
- 开发针对物种的向药物输送系统对于治疗应用至关重要.
研究的目的:
- 为了合成和表征一种新型 - 胺胺 (As-Mal) 试剂.
- 评估As-Mal与和蛋白质中的囊残留物结合的能力.
- 探索As-Mal的潜力,以有针对性地将As (III) 物种传递给细胞类硫醇.
主要方法:
- -马利胺 (As-Mal) 结合物的合成和表征.
- 将As-Mal与铁素结合,并评估大肠杆菌铁素减少酶的抑制作用.
- 在所有囊蛋白残留物和特定位点使用突变将As-Mal与核糖核酶A (RNase A) 结合起来.
- 使用工程RNase A突变物研究As-Mal与蛋白质二硫化异构酶 (PDI) 的结合.
主要成果:
- 阿斯-马尔成功合成,并证明对暴露的氨酸残留物有高效的结合.
- 与简单的素相比,As-Mal结合型氨素显示出对大肠杆菌氨素减少酶的增强抑制.
- 阿斯-马尔可以与RNase A中的多个或特定的半氨酸残留物结合.
- 在PDI的CxxC基因中观察到As-Mal的强结合,使用修饰的RNase A.
结论:
- -马利胺 (As-Mal) 是一种多用途的试剂,用于将As(III) 纳入含有醇的生物分子.
- 阿斯-马尔促进物种的向特定蛋白质硫醇的有针对性的输送.
- 这种方法对开发涉及化合物的新疗法具有前景.
相关概念视频
Preparation of 1° Amines: Gabriel Synthesis
Direct alkylation is not a suitable method for synthesizing amines because it produces polyalkylated products. Gabriel synthesis is the most preferred method to exclusively make primary amines. The method uses phthalimide, which contains a protected form of nitrogen that participates in alkylation only once to predominantly give primary amines.
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
Treating arylamines with nitrous acid gives aryldiazonium salts that are effective substrates in nucleophilic aromatic substitution reactions. The diazonio group in these salts can be easily displaced by different nucleophiles, yielding a wide variety of substituted benzenes. The leaving group departs as nitrogen gas, and this easy elimination is the driving force for the substitution reaction.
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo, or cyano...
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo, or cyano...
Preparation of Amines: Reductive Amination of Aldehydes and Ketones
Carbonyl compounds and primary amines undergo reductive amination first to produce imines, followed by secondary amines in the same reaction mixture, using selective reducing agents like sodium cyanoborohydride or sodium triacetoxyborohydride. Reductive amination produces different degrees of substitution of amines depending on the starting amine substrate.

