通过固定DERA催化制药中间体的流合成:比较不同的固定技术和反应堆设计
Dino Skendrović1, Anita Šalić1, Ivan Karlo Cingesar2
1Faculty of Chemical Engineering and Technology, University of Zagreb, 10000 Zagreb, Croatia.
Molecules (Basel, Switzerland)
|June 13, 2025
概括
使用固定酶的连续流合成为他类药物中间体提供了一条可持续的途径. 基于磁性纳米粒子的系统与批量和泡方法相比,实现了更高的转换率和产量.
科学领域:
- 生物催化剂和绿色化学
- 制药工艺开发 制药工艺开发
- 化学工程是化学工程的重要组成部分.
背景情况:
- 对于他类药物的中间体,传统的化学合成往往是低效的,对环境也很负担.
- 酶合成提供了一个可持续和选择性的替代方案.
- 连续流程过程在控制和可扩展性方面比批量方法具有优势.
研究的目的:
- 通过使用固定化的2-脱氧-D- рибо-5-酸盐阿尔多酶 (DERA) 来研究他类药物前体的连续流合成.
- 为了比较介质 (MCF) 和磁纳米粒子 (MNP) 固定支在毫度反应器系统中的性能.
- 为了评估不同的反应堆配置 (固定床和流化床) 对于酶性他类药物前体的合成.
主要方法:
- 将DERA固定到MCF和MNP上.
- 固定床 (MCF) 和流化床 (MNP) 百万反应堆的设计和运行.
- 连续流结果与批量反应堆性能进行比较.
- 对关键绩效指标的分析:转换,选择性,收益率和生产力.
主要成果:
- 在优化条件下,基于MNP的流化床百万反应器实现了97.78%的转换率和95.85%的产量.
- 许多国家核能系统的性能明显优于批量反应堆和基于MCF的固定床百万反应堆.
- 优化的固定和反应器设计对于酶稳定性和催化效率至关重要.
结论:
- 使用固定酶的连续流生物催化是一种可行的和有效的方法,用于制造他类药物的中间体.
- 在流化床反应器中MNP固定提供了对他类药物前体的酶合成的卓越性能.
- 进一步优化固定化技术和反应堆配置可以增强可持续的制药制造.
相关概念视频
02:29Ethers from Alcohols: Alcohol Dehydration and Williamson Ether Synthesis
11.0K
Overview
Ethers can be prepared from organic compounds by various methods. Some of them are discussed below,
Preparation of Ethers by Alcohol Dehydration
In this method, in the presence of protic acids, alcohol dehydrates to produce alkenes and ethers under different conditions. For example, in the presence of sulphuric acid, dehydration of ethanol at 413 K yields ethoxyethane, whereas it yields ethene at 443 K.
Ethers can be prepared from organic compounds by various methods. Some of them are discussed below,
Preparation of Ethers by Alcohol Dehydration
In this method, in the presence of protic acids, alcohol dehydrates to produce alkenes and ethers under different conditions. For example, in the presence of sulphuric acid, dehydration of ethanol at 413 K yields ethoxyethane, whereas it yields ethene at 443 K.
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02:43E1 Reaction: Stereochemistry and Regiochemistry
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One of the critical aspects of the E1 reaction mechanism, as also observed in E2, is the regiochemistry, with multiple regioisomers obtained as products. In the example discussed, the presence of water as a weak base favors elimination over substitution to generate two alkenes. Given that alkenes’ stability increases with the number of alkyl groups across the double bond, typically, E1 reactions lead to the Zaitsev product, for this is more substituted and stable than the Hofmann product.
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01:28Preparation of 1° Amines: Gabriel Synthesis
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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...
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