3-[3-(1-ethyl-4,4,6-trimethyl-2-oxo-1,4-dihydro-2H-benzo[d][1,3]oxazin-7-yl)-4-trifluoromethoxy-phenyl]-acrylic acid tert-butyl ester 在
3-[3-(1-Ethyl-4,4,6-trimethyl-2-oxo-1,4-dihydro-2H-benzo[d][1,3]oxazin-7-yl)-4-trifluoromethoxy-phenyl]-acrylic acid 作用下,
以
二氯甲烷 、
三氟乙酸 为溶剂,
反应 16.0h,
以to obtain 3-[3-(1-ethyl-4,4,6-trimethyl-2-oxo-1,4-dihydro-2H-benzo[d][1,3]oxazin-7-yl)-4-trifluoromethoxy-phenyl]-acrylic acid as a white solid (Compound 14, 0.06 g)的产率得到3-[3-(1-Ethyl-4,4,6-trimethyl-2-oxo-1,4-dihydro-2H-benzo[d][1,3]oxazin-7-yl)-4-trifluoromethoxy-phenyl]-acrylic acid