(2,3-Dihydro-pyrido[3,4-b][1,4]oxazin-1-yl)-(4-methoxy-3-trifluoromethyl-phenyl)-methanone 、 、
三溴化硼 在
b 作用下,
以to obtain the target compound, (2,3-dihydro-pyrido[3,4-b][1,4]oxazin-1-yl)-(4-hydroxy-3-trifluoromethyl-phenyl)-methanone的产率得到(2,3-dihydro-pyrido[3,4-b][1,4]oxazin-1-yl)-(4-hydroxy-3-trifluoromethyl-phenyl)-methanone