(S)-3-phenoxypyrrolidine 、 5-(2,4,5-trifluoro-3-hydroxyphenyl)-1,2,4-oxadiazole-3-carboxylic acid 在
N,N-二异丙基乙胺 、 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,
以6 %的产率得到(S)-(3-phenoxypyrrolidin-1-yl)(5-(2,4,5-trifluoro-3-hydroxyphenyl)-1,2,4-oxadiazol-3-yl)methanone