(R)-2-(3-fluoropyrrolidin-1-yl)-2-oxoacetic acid 、
ethyl 10-(methylamino)-4-oxo-3-((phenylcarbonyl)oxy)-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxylate hydrochloride 在
4-二甲氨基吡啶 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,
反应 16.0h,
以54%的产率得到ethyl 10-((((3R)-3-fluoro-1-pyrrolidinyl)(oxo)acetyl)(methyl)amino)-4-oxo-3-((phenylcarbonyl)oxy)-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxylate