发明人沈红梅,刘建华,孙丽萍. "Method for the Synthesis of 6,7-Dibromo-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one" [P]. 中国发明专利, 专利号 CN 110847561 A, 授权公告日 2021-03-15.
发明人冯建国,孙丽萍,罗永刚. "A Process for Preparing High-Purity 6,7-Dibromo-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one" [P]. 中国发明专利, 专利号 CN 109251482 B, 授权公告日 2016-01-13.
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