Development and kilogram-scale synthesis of mGlu5 negative allosteric modulator VU0424238 (auglurant)
作者:Thomas K. David、Nayak K. Prashanth、M. Rajendraswami、Devendrareddy Pallalu、Arlindo L. Castelhano、Michael J. Kates、Anna L. Blobaum、Carrie K. Jones、Kyle A. Emmitte、P. Jeffrey Conn、Craig W. Lindsley
DOI:10.1016/j.tetlet.2017.07.100
日期:2017.9
modulator (NAM) developed as an alternative treatment for depression. The process highlights a challenging pyridine N-oxidation sequence, an SNAr reaction, and the elimination of all chromatography steps (required in the medicinal chemistry route) with replacement by highly efficient recrystallizations (save one silica plug). The improved process was utilized for the preparation of a 1.2 kg toxicology batch
该通讯详细介绍了新型mGlu 5负变构调节剂(NAM )N-(5-氟吡啶-2--2-基)-6-甲基-4-(嘧啶-5-基氧基)吡啶啉酰胺(VU0424238,auglurant)的千克规模合成)作为抑郁症的替代疗法而开发。该方法突出了具有挑战性的吡啶N-氧化顺序,S N Ar反应,并消除了所有色谱步骤(药物化学路线中要求),并通过高效重结晶(节省了一个硅胶塞)进行了替换。改进后的过程用于制备1.2千克毒理学批次和2.82千克GMP批次,以支持非常高纯度(99.8%)的I期试验。