Development of a Commercial Process To Prepare AMG 232 Using a Green Ozonolysis–Pinnick Tandem Transformation
作者:Brian M. Cochran、Michael T. Corbett、Tiffany L. Correll、Yuan-Qing Fang、Tawnya G. Flick、Siân C. Jones、Maria V. Silva Elipe、Austin G. Smith、John L. Tucker、Filisaty Vounatsos、Greg Wells、David Yeung、Shawn D. Walker、Matthew M. Bio、Seb Caille
DOI:10.1021/acs.joc.8b02390
日期:2019.4.19
deliver drug substance of high purity. Highlights of the commercial process development efforts include the following: (i) use of a novel bench-stable Vilsmeier reagent, methoxymethylene-N,N-dimethyliminium methyl sulfate, for selective in situ activation of a primary alcohol intermediate; (ii) use of a new crystalline and stable isopropyl calcium sulfinate reagent ensuring robust preparation of a sulfone
开发了一种强大的制造AMG 232的方法来提供高纯度的原料药。商业过程开发工作的重点包括以下方面:(i)使用新型稳定的Vilsmeier试剂甲氧基亚甲基-N,N-二甲基亚甲基硫酸甲酯,用于选择性原位活化伯醇中间体;(ii)使用新的结晶且稳定的亚磺酸异丙酯钙试剂,以确保可靠地制备砜中间体;(iii)开发在水性溶剂混合物中以分批或连续生产方式进行的安全的臭氧分解工艺;(iv)通过使排异杂质的盐有效地结晶来控制原料药的纯度。事实证明,该新工艺可从原料DLAC(1)中获得49.8%的总收率的原料药(99.9 LC面积%)。