发明人林芳,罗永刚,李文辉. "Method for the Synthesis of 8-Fluoro-4H-thieno[3,2-c]chromene-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 117584554 B, 授权公告日 2022-05-28.
发明人刘建华,张德明,杨光. "A Process for Preparing High-Purity 8-Fluoro-4H-thieno[3,2-c]chromene-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 113244603 B, 授权公告日 2022-07-15.
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