Synthesis of the NK1 Receptor Antagonist GW597599. Part 3: Development of a Scalable Route to a Key Chirally Pure Arylpiperazine Urea, A Happy End
作者:Giuseppe Guercio、Sergio Bacchi、Alcide Perboni、Corinne Leroi、Francesco Tinazzi、Ilaria Bientinesi、Marie Hourdin、Michael Goodyear、Stefano Curti、Stefano Provera、Zadeo Cimarosti
DOI:10.1021/op9002032
日期:2009.11.20
GW597599 1 is a novel NK-1 antagonist currently under investigation for the treatment of central nervous system disorders and emesis. The initial chemical development synthetic route, derived from the one used by medicinal chemistry, involved several hazardous reagents, gave low yields and produced high levels of waste. Through a targeted process of research and development, application of novel techniques
GW597599 1是目前正在研究中枢神经系统疾病和呕吐的新型NK-1拮抗剂。最初的化学开发合成路线是由药物化学使用的合成路线衍生而来,涉及几种有害试剂,产量低且产生大量废物。通过有针对性的研发过程,新技术的应用和广泛的路线探索,为GW597599开发了一条新的合成路线。本文报告了GW597599化学合成的第三阶段和最后阶段的优化工作,以及开发适合中试工厂的光学纯芳基哌嗪衍生物1的制备方法。。特别地,该方法消除了在中间体氨基甲酰氯的合成中使用三光气,从而大大提高了安全性,总产率和产量。