Development of an NH<sub>4</sub>Cl-Catalyzed Ethoxy Ethyl Deprotection in Flow for the Synthesis of Merestinib
作者:Michael O. Frederick、Joel R. Calvin、Richard F. Cope、Michael E. LeTourneau、Kurt T. Lorenz、Martin D. Johnson、Todd D. Maloney、Yangwei John Pu、Richard D. Miller、Lauren E. Cziesla
DOI:10.1021/acs.oprd.5b00240
日期:2015.10.16
An NH4Cl-catalyzed ethoxy ethyl deprotection was developed for the synthesis of merestinib, a MET inhibitor. Alternative reactor technologies using temperatures above the solvent boiling point are combined with this mild catalyst to promote the deprotection reaction. The reaction is optimized for flow and has been used to synthesize over 100 kg of the target compound. The generality of the reaction
开发了NH 4 Cl催化的乙氧基乙基脱保护基,用于合成MET抑制剂merestinib。使用高于溶剂沸点的温度的替代反应器技术与这种温和的催化剂相结合,以促进脱保护反应。该反应针对流动进行了优化,已用于合成超过100千克的目标化合物。其他化合物和保护基也证明了反应条件的一般性。