(S)-1-fluoro-3,3-dimethylbutan-2-amine hydrochloride 、
3-((4aS,5aS)-3-carboxy-4,4a,5,5a-tetrahydro-1H-cyclopropa[4,5]cyclopenta[1,2-c]pyrazol-1-yl)pyrazine 1-oxide 在
三乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 (1aS,5aS)-2-(4-oxy-pyrazin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diazacyclopropa[a]pentalene-4-carboxylic acid ((S)-1-fluoromethyl-2,2-dimethylpropyl)-amide