tert-butyl [(2,2-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl)methyl](methylsulfonyl)carbamate 、
4-氟苯硼酸 以to give tert-butyl {[4-(4-fluorophenyl)-2,2-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl]methyl}(methylsulfonyl)carbamate (50 mg) as a colorless powder的产率得到tert-butyl {[4-(4-fluorophenyl)-2,2-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl]methyl}(methylsulfonyl)carbamate