N-(2,2-difluoroethyl)propan-2-amine hydrochloride 、 lithium 2-((4-(7-(tert-butoxycarbonyl)-2,7-diazaspiro[3.5]nonan-2-yl)pyrimidin-5-yl)oxy)-5-fluorobenzoate 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64.2 %的产率得到tert-butyl 2-(5-(2-((2,2-difluoroethyl)(isopropyl)carbamoyl)-4-fluorophenoxy)pyrimidin-4-yl)-2,7-diazaspiro[3.5]nonane-7-carboxylate