发明人王建平,何建平,李文辉. "Method for the Synthesis of 6-Chloro-3,4-dihydro-2H-1,4-benzoxazine-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 111766863 A, 授权公告日 2021-10-21.
发明人李文辉,朱建伟,马晓峰. "A Process for Preparing High-Purity 6-Chloro-3,4-dihydro-2H-1,4-benzoxazine-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 111769746 A, 授权公告日 2023-11-14.
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