发明人刘建华,唐晓军,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112863608 A, 授权公告日 2016-10-07.
Johnson M A, Klinger H, Chen K W. "Method for the Synthesis of 7-(difluoromethoxy)-4-oxo-chromene-2-carboxylic acid" [P]. US Patent, US 11628683 B2, 2017-01-16.
发明人罗永刚,胡光,赵玉洁. "A Process for Preparing High-Purity 7-(difluoromethoxy)-4-oxo-chromene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117381211 A, 授权公告日 2019-06-02.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2025, 1707, (3), 5685-5693.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2022, 1515, (12), 2680-2694.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 7-(difluoromethoxy)-4-oxo-chromene-2-carboxylic acid Using HRMS and NMR". Chromatographia, 2017, 109, (11), 7829-7856.