Johansson L, Schröder R, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3867952 A1, 2018-11-23.
发明人张德明,高志强,王建平. "Method for the Synthesis of 3-(Difluoromethoxy)-5-nitrothiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111628176 B, 授权公告日 2015-05-19.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2020, 803, 9386-9390.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2018, 1837, (11), 2176-2199.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 3-(Difluoromethoxy)-5-nitrothiophene-2-carboxylic acid Using HRMS and NMR". J. Agric. Food Chem., 2011, 160, 4991-4994.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2024, 1633, (9), 8121-8125.