发明人杨光,徐明华,胡光. "Method for the Synthesis of 7-Hydroxy-2-oxo-N-((tetrahydrofuran-2-yl)methyl)-2H-chromene-3-carboxamide" [P]. 中国发明专利, 专利号 CN 110761961 A, 授权公告日 2018-04-02.
发明人马晓峰,黄志刚,钱学锋. "A Process for Preparing High-Purity 7-Hydroxy-2-oxo-N-((tetrahydrofuran-2-yl)methyl)-2H-chromene-3-carboxamide" [P]. 中国发明专利, 专利号 CN 110645332 B, 授权公告日 2019-04-20.
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