(1S)-1-(5-溴-2-吡啶基)乙胺盐酸盐(1:1) 、
1-{[(R)-5-(4-Cyano-benzyl)-7-(3,5-dichloro-4-fluoro-phenyl)-5-methyl-6-oxo-6,7-dihydro-5H-imidazo[1,2-α]imidazole-3-carbonyl]-amino}-cyclopropanecarboxylic 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,
反应 3.17h,
以98%的产率得到(R)-5-(4-cyano-benzyl)-7-(3,5-dichloro-4-fluoro-phenyl)-5-methyl-6-oxo-6,7-dihydro-5H-imidazo[1,2-a]imidazole-3-carboxylic acid {1-[(R)-1-(5-bromo-pyridin-2-yl)-ethylcarbamoyl]-cyclopropyl}-amide