生物活性支架的合成和转化通过修改的Mannich和aza-Friedel-Crafts反应
Dóra Hegedűs1, Nikoletta Szemerédi2, Gabriella Spengler2
1Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720, Szeged, Hungary.
概括
研究人员用纳替代剂合成了新的甘氨酸衍生物,探索了它们在循环加和曼尼赫反应中的反应性. 该研究研究了这些新化合物的潜在抗菌和抗癌活性.
科学领域:
- 有机合成 有机合成
- 药用化学 医学化学
- 化学生物学 化学生物学
背景情况:
- 甘氨酸类型的前体是有机合成中的多功能构建块.
- 纳夫衍生物和8-基诺林因其生物学意义而得到认可.
- 循环 imines,indoles 和 azaindoles 是药物发现中的重要异环基架.
研究的目的:
- 合成新型双功能甘氨酸类型的前体,其中包括2-和1-纳醇部分.
- 研究这些前体在 [4+2] 循环添加和曼尼赫反应中的反应性.
- 评估合成的化合物是否具有潜在的抗菌和抗癌活性.
主要方法:
- 用2-和1-纳夫托尔替代的甘氨酸衍生物的合成.
- 在 [4+2] 循环加法反应中对正二甲基的中间稳定性的探索.
- 检查涉及8-基诺林类似物和随后的转换的曼尼赫反应.
- 设计和合成循环氨基衍生物与英多尔和7-阿扎英多尔相结合.
- 预先对抗菌和抗癌活性进行生物查.
主要成果:
- 成功合成了双功能的甘氨酸类型前体.
- 通过 орто基诺甲基代中间体证明了前体稳定.
- 曼尼希基的形成及其转化为二甲衍生物.
- 系统设计和合成新型循环氨基-醇/亚醇合物.
- 关于抗菌和抗癌作用的结构-活性关系的初步数据.
结论:
- 合成和表征了新型的用醇替代剂合成的甘氨酸衍生物.
- 研究了这些化合物在关键有机转化中的反应性.
- 合成的化合物显示出进一步开发抗菌和抗癌剂的潜力.
相关概念视频
Preparation of 1° Amines: Hofmann and Curtius Rearrangement Mechanism
3.4K
The Hofmann and Curtius rearrangement reactions can be applied to synthesize primary amines from carboxylic acid derivatives such as amides and acyl azides. In the Hofmann rearrangement, a primary amide undergoes deprotonation in the presence of a base, followed by halogenation to generate an N-haloamide. A second proton abstraction produces a stabilized anionic species, which rearranges to an isocyanate intermediate via an alkyl group migration from the carbonyl carbon to the neighboring...
3.4K
Preparation of 1° Amines: Hofmann and Curtius Rearrangement Overview
3.2K
In the presence of an aqueous base and a halogen, primary amides can lose the carbonyl (as carbon dioxide) and undergo rearrangement to form primary amines. This reaction, called the Hofmann rearrangement, can produce primary amines (aryl and alkyl) in high yields without contamination by secondary and tertiary amines.
3.2K
Preparation of 1° Amines: Gabriel Synthesis
3.5K
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...
3.5K


