2,2-difluoro-1-methylcyclopentanecarboxylic acid 、 (2S,5S)-2,3,4,5-tetrahydro-2,5-methanopyrido[3,4-f][1,4]oxazepine-9-carbonitrile hydrochloride 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,
生成 (2S,5S)-4-(2,2-difluoro-1-methylcyclopentanecarbonyl)-2,3,4,5-tetrahydro-2,5-methanopyrido[3,4-f][1,4]oxazepine-9-carbonitrile 、 (2S,5S)-4-(2,2-difluoro-1-methylcyclopentanecarbonyl)-2,3,4,5-tetrahydro-2,5-methanopyrido[3,4-f][1,4]oxazepine-9-carbonitrile