发明人郭海燕,赵玉洁,冯建国. "Method for the Synthesis of 6-Methoxy-1H-benzo[d][1,3]oxazin-2(4H)-one" [P]. 中国发明专利, 专利号 CN 112914572 A, 授权公告日 2018-05-13.
发明人朱建伟,杨光,林芳. "A Process for Preparing High-Purity 6-Methoxy-1H-benzo[d][1,3]oxazin-2(4H)-one" [P]. 中国发明专利, 专利号 CN 116346929 A, 授权公告日 2020-05-22.
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