Björnsson E, Nowak P, Kowalski A. "一种的合成方法" [P]. European Patent, EP 3138540 A1, 2021-01-19.
发明人沈红梅,徐明华,张德明. "Method for the Synthesis of 4-Cyclopropoxy-3-(methylcarbamoyl)picolinic acid" [P]. 中国发明专利, 专利号 CN 110762314 A, 授权公告日 2018-11-14.
发明人王建平,赵玉洁,李文辉. "A Process for Preparing High-Purity 4-Cyclopropoxy-3-(methylcarbamoyl)picolinic acid" [P]. 中国发明专利, 专利号 CN 117566593 A, 授权公告日 2018-07-11.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2015, 804, 5128-5149.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2010, 944, (8), 8337-8349.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 4-Cyclopropoxy-3-(methylcarbamoyl)picolinic acid Using HRMS and NMR". Biomed. Chromatogr., 2015, 246, 8014-8030.