发明人何建平,郭海燕,郑宇鹏. "Method for the Synthesis of Ethyl 8-hydroxy-4-oxo-4H-chromene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115083742 B, 授权公告日 2019-12-05.
Lefèvre J P, Rossi M, Nielsen H. "A Process for Preparing High-Purity Ethyl 8-hydroxy-4-oxo-4H-chromene-2-carboxylate" [P]. European Patent, EP 3952484 A1, 2020-12-27.
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