2,6-dibromo-4-fluoro-1-methyl-1H-1,3-benzodiazole 、 (1R,3R,5S)-8-azabicyclo[3.2.1]octan-3-yl 5-cyclopropyl-3-(2,6-dichlorophenyl)-1,2-oxazole-4-carboxylate 在
cesium fluoride 作用下,
以
二甲基亚砜 为溶剂,
以64%的产率得到(1R,3R,5S)-8-(6-bromo-4-fluoro-1-methyl-1H-1,3-benzodiazol-2-yl)-8-azabicyclo[3.2.1]octan-3-yl 5-cyclopropyl-3-(2,6-dichlorophenyl)-1,2-oxazole-4-carboxylate