甲胺 、 6-chloro-7-fluoro-3-(4-nitrophenyl)-2,3-dihydrobenzo[e][1,3]oxazin-4-one 以to give 0.134 mg (81%) of 6-chloro-7-(methylamino)-3-(4-nitrophenyl)-2,3-dihydrobenzo[e][1,3]oxazin-4-one的产率得到6-chloro-7-(methylamino)-3-(4-nitrophenyl)-2,3-dihydrobenzo[e][1,3]oxazin-4-one