Process Development and Scale-up of a β-Secretase Inhibitor via a Stereospecific Jocic Reaction
作者:Kevin E. Henegar、Ricardo Lira、Hui Kim、Juan Gonzalez-Hernandez
DOI:10.1021/op400115g
日期:2013.7.19
A scalable process for the synthesis of a spiropiperidine beta-secretase inhibitor is described. Key stereochemical transformations utilized are a diastereoselective trichloromethyl addition followed by an unprecedented stereospecific Jocic reaction with an aniline nucleophile. Simplified processing was developed for a Dieckmann cyclization/decarboxylation sequence to give a process suitable for the production of kilogram quantities of API.