作者:David J. Dale、Peter J. Dunn、Clare Golightly、Michael L. Hughes、Philip C. Levett、Andrew K. Pearce、Patricia M. Searle、Gordon Ward、Albert S. Wood
DOI:10.1021/op9900683
日期:2000.1.1
This paper is a case history of the chemical development of sildenafil which covers various aspects of work in chemical development namely: route selection, scale-up issues, the development of an efficient synthesis with high throughput, process safety, and environmental issues. Interesting chemical points include improved methods of preparing pyrazolo[4,3-d]pyrimidines and the unusual isolation of
本文是西地那非化学开发的案例历史,涵盖了化学开发工作的各个方面,即:路线选择、放大问题、高通量高效合成的开发、工艺安全和环境问题。有趣的化学点包括改进的制备吡唑并[4,3-d]嘧啶的方法和不寻常的中间体作为其复盐的分离 (10)。讨论了硝化吡唑-5-羧酸的潜在危险,这些酸被活化为脱羧反应。