2-{3-[(tert-butylsulfinyl)amino]oxetan-3-yl}butanoic acid 、
2-溴-1-4-(三氟甲氧基)苯基乙酮 在
silica gel 作用下,
反应 3.0h,
以to afford the title compound (3.435 g, 73% yield)的产率得到2-oxo-2-[4-(trifluoromethoxy)phenyl]ethyl 2-{3-[(tert-butylsulfinyl)amino]oxetan-3-yl}butanoate