Yamamoto T, Patel M V, Chen K W. "一种6-甲基-2-氧代-2H-苯并吡喃-3-羧酸的合成方法" [P]. US Patent, US 9187898 B2, 2021-05-04.
发明人林芳,韩伟,王建平. "Method for the Synthesis of 6-Methyl-2-oxo-2H-chromene-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109007573 B, 授权公告日 2025-09-12.
发明人唐晓军,罗永刚,沈红梅. "A Process for Preparing High-Purity 6-Methyl-2-oxo-2H-chromene-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117580880 A, 授权公告日 2015-08-22.
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