环丙沙星是一种广谱抗生素,被公认为世界卫生组织的基本药物之一。它在治疗与泌尿,呼吸道和胃肠道感染有关的革兰氏阴性细菌感染方面特别有效。已开发出一种精简且高产率的环丙沙星连续合成方法,该方法采用化学选择性的C-酰化步骤,因此无需进行中间分离,提取或纯化。端到端过程的停留时间为4.7分钟,在实验室规模下的吞吐率为15.8 g / h,总的分离产率为83%。
Acid-Catalyzed Cascade Reactions of Enaminones with Aldehydes: C-H Functionalization To Afford 1,4-Dihydropyridines
作者:Jingyu Yang、Chengyu Wang、Xin Xie、Hongfeng Li、Yanzhong Li
DOI:10.1002/ejoc.201000607
日期:2010.8
An efficient acid-catalyzed approach to the synthesis of functional 1,4-dihydropyridines from the reaction of readily available enaminones with aldehydes has been developed. This methodology was realized by a cascade reaction involving first formation of divinylmethanes and subsequent intramolecular cyclization.
A Consolidated and Continuous Synthesis of Ciprofloxacin from a Vinylogous Cyclopropyl Amide
作者:N. Perrer Tosso、Bimbisar K. Desai、Eliseu De Oliveira、Juekun Wen、John Tomlin、B. Frank Gupton
DOI:10.1021/acs.joc.8b03222
日期:2019.3.15
particularly effective in the treatment of Gram-negative bacterial infections associated with urinary, respiratory, and gastrointestinal tract infections. A streamlined and high yielding continuous synthesis of ciprofloxacin has been developed, which employs a chemoselective C-acylation step that precludes the need for intermediate isolations, extractions, or purifications. The end-to-end process has
环丙沙星是一种广谱抗生素,被公认为世界卫生组织的基本药物之一。它在治疗与泌尿,呼吸道和胃肠道感染有关的革兰氏阴性细菌感染方面特别有效。已开发出一种精简且高产率的环丙沙星连续合成方法,该方法采用化学选择性的C-酰化步骤,因此无需进行中间分离,提取或纯化。端到端过程的停留时间为4.7分钟,在实验室规模下的吞吐率为15.8 g / h,总的分离产率为83%。
[EN] STREAMLINED SYNTHESES OF FLUOROQUINOLONES<br/>[FR] SYNTHÈSES RATIONALISÉES DE FLUOROQUINOLONES