发明人唐晓军,罗永刚,沈红梅. "一种3-甲基-4-氧代-6-氯-4H-色烯-2-甲酸的合成方法" [P]. 中国发明专利, 专利号 CN 115218836 A, 授权公告日 2024-06-05.
发明人朱建伟,胡光,杨光. "Method for the Synthesis of 6-Chloro-3-methyl-4-oxo-4H-chromene-2-carboxylic Acid" [P]. 中国发明专利, 专利号 CN 111195878 A, 授权公告日 2023-04-15.
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