Background: The peracetylation is a simple chemical modification that can be used to enhance the bioavailability of hydrophilic products and to obtain safe and stable pro-drugs.
Results: A totally green, solvent-free and catalyst-free microwave (MW)-assisted method for peracetylation of natural products such as oleuropein, alpha-hederin, quercetin and rutin is presented. By simply tuning the MW heating program, polyols with chemical diverse –OH groups or thermolabile functionalities can be peracetylated to improve the biological activity without degradation of the natural starting molecules. An evaluation of the process greenness was performed.
Conclusion: The method is potentially universally applicable for green acetylation of hydrophilic biological molecules, potentially easily scalable for industrial applications, including pharmaceutical, cosmetic and food industry.
背景:过乙酰化是一种简单的化学修饰方法,可用于增强亲水产品的生物利用度,并获得安全稳定的前药。
结果:提出了一种完全绿色、无溶剂、无催化剂的微波辅助方法,用于过乙酰化天然产物,如欧洲叶酸、α-藤黄素、槲皮素和芦丁。通过简单调节微波加热程序,可以对具有化学多样性的多元醇进行过乙酰化,以提高生物活性,而不会降解天然起始分子。对过程的绿色性进行了评估。
结论:该方法可能普遍适用于绿色乙酰化亲水生物分子,可能易于规模化应用于工业领域,包括制药、化妆品和食品行业。