作者:Patrick Cerfontaine、Frank Driessens、Marie-France Deltent、Sylvain Petit
DOI:10.1021/acs.oprd.9b00421
日期:2020.5.15
Herein we describe the practical synthesis of a novel VLA-4 antagonist 1 as a potential treatment for multiple sclerosis. The key step is based on the Povarov reaction of an imine with an alkene to access a tetrahydroquinoline intermediate, leading to the corresponding quinoline core after an oxidative aromatization step. The development of the synthesis of 1 led to decreased complexity and the elimination
在这里,我们描述了新型VLA-4拮抗剂1的实用合成,作为多发性硬化症的潜在治疗方法。关键步骤基于亚胺与烯烃的Povarov反应,以进入四氢喹啉中间体,在氧化芳构化步骤后产生相应的喹啉核。1合成技术的发展导致降低了复杂性并消除了色谱纯化。通过以高收率生产32公斤1的纯度高的产品,证明了这些改进。