Route Optimization of the Noncovalent Modulator of Hemoglobin PF-07059013 for Treatment of Sickle Cell Disease through a Palladium-Mediated C–O Coupling, Part II: Pilot Plant Scale Manufacture
作者:Cameron Abercrombie、Christopher P. Ashcroft、Matthew Badland、Aaron Baldwin、Livia T. Baldwin、Sarah Brisley、Wayne Callar、Pedro Daddario、Elaa Hilou、Chintelle James、Ruizhi Li、Yiyang Liu、Sebastien Monfette、Jared L. Piper、Giselle Reyes、Hud Risley、Fabrice H. Salingue、Kudzai Saunyama、Michael G. Vetelino
DOI:10.1021/acs.oprd.3c00038
日期:2023.5.19
optimization of the first process chemistry route for pilot-plant-scale manufacture of PF-07059013 (1), a noncovalent modulator of hemoglobin for the treatment of sickle cell disease. Five areas of improvement are discussed in detail, namely, an alternative synthetic sequence to install the pyridone functionality before benzylic ether formation, a shorter and safer route to quinoline fragment 9, a tosyl-swap
在此,我们报告了用于中试工厂规模生产 PF-07059013 ( 1 ) 的第一个工艺化学路线的优化,PF-07059013 是一种用于治疗镰状细胞病的非共价血红蛋白调节剂。详细讨论了五个改进领域,即在苄基醚形成之前安装吡啶酮功能的替代合成顺序,更短和更安全的喹啉片段 9 的路线,避免分离热不稳定甲苯磺酸酯中间体的甲苯磺酰交换策略, Pd 催化的 C-O 偶联具有低催化剂负载和高效的 Pd 去除,并改进了 API 游离碱的最终分离。新路线在我们的试验工厂设施中执行,以交付 76 公斤的 API。