发明人杨光,罗永刚,高志强. "Method for the Synthesis of 4,6-Dimethyl-2-oxo-2H-pyran-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112373768 B, 授权公告日 2015-08-12.
Jørgensen K, Nowak P, Sørensen M. "A Process for Preparing High-Purity 4,6-Dimethyl-2-oxo-2H-pyran-3-carboxylic acid" [P]. European Patent, EP 3690764 A1, 2016-01-28.
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