发明人张德明,何建平,刘建华. "Method for the Synthesis of 3-Oxo-3H-benzo[f]chromene-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 115228635 B, 授权公告日 2022-05-18.
发明人郑宇鹏,刘建华,朱建伟. "A Process for Preparing High-Purity 3-Oxo-3H-benzo[f]chromene-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 113422323 A, 授权公告日 2017-04-02.
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