2,3-二氢-1H-吡啶并[3,4-b][1,4]噁嗪 、
3,5-dibromo-4-methoxybenzoyl chloride 在
(3,5-dibromo-4-methoxy-phenyl)-(2,3-dihydro-pyrido[3,4-b][1,4]oxazin-1-yl)-methanone 作用下,
以to obtain the target compound 5, (3,5-dibromo-4-methoxy-phenyl)-(2,3-dihydro-pyrido[3,4-b][1,4]oxazin-1-yl)-methanone的产率得到(3,5-dibromo-4-methoxy-phenyl)-(2,3-dihydro-pyrido[3,4-b][1,4]oxazin-1-yl)-methanone