rac-3-amino-7,7,7-trifluoro-2-methylheptan-2-ol hydrochloride 、
8-[(3,3-difluorocyclobutyl)methoxy]-2,6-dimethyl-imidazo[1,2-a]pyridine-3-carboxylic acid 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以55%的产率得到rac-8-[(3,3-difluorocyclobutyl)methoxy]-2,6-dimethyl-N-(7,7,7-trifluoro-2-hydroxy-2-methylheptan-3-yl)imidazo[1,2-a]pyridine-3-carboxamide