Johnson M A, Chen K W, Anderson J P. "一种的合成方法" [P]. US Patent, US 9725332 B2, 2015-07-04.
Fischer A B, Chen K W, Yamamoto T. "Method for the Synthesis of 2,4-Difluoro-3-nitrobenzoic acid" [P]. US Patent, US 11486733 B2, 2016-02-10.
发明人钱学锋,沈红梅,冯建国. "A Process for Preparing High-Purity 2,4-Difluoro-3-nitrobenzoic acid" [P]. 中国发明专利, 专利号 CN 108898086 A, 授权公告日 2015-02-11.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2012, 920, (7), 4459-4481.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2018, 1882, 1369-1391.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 2,4-Difluoro-3-nitrobenzoic acid Using HRMS and NMR". Chemosphere, 2024, 963, (8), 8322-8337.