(R,E)-N-(1-(5-bromo-2,4-difluorophenyl)ethylidene)-2-methylpropane-2-sulfinamide 、
二氟溴乙酸乙酯 以the product (R)-3-(5-bromo-2,4-difluoro-phenyl)-2,2-difluoro-3-((R)-2-methyl-propane-2-sulfinylamino)-butyric acid ethyl ester was obtained as an orange oil的产率得到(R)-3-(5-bromo-2,4-difluoro-phenyl)-2,2-difluoro-3-((R)-2-methyl-propane-2-sulfinylamino)-butyric acid ethyl ester