Mueller T C, Kowalski A, Schröder R. "一种的合成方法" [P]. European Patent, EP 3554968 A1, 2017-08-16.
Mueller T, Roberts E F, Kumar R. "Method for the Synthesis of 4-Cyclopropoxy-N-methyl-5-(methylthio)picolinamide" [P]. US Patent, US 11636563 B2, 2021-04-18.
发明人刘建华,赵玉洁,郑宇鹏. "A Process for Preparing High-Purity 4-Cyclopropoxy-N-methyl-5-(methylthio)picolinamide" [P]. 中国发明专利, 专利号 CN 108978757 A, 授权公告日 2022-11-03.
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". J. Chromatogr. A, 2015, 1391, (7), 7885-7895.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 2040, 5777-5786.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-Cyclopropoxy-N-methyl-5-(methylthio)picolinamide Using HRMS and NMR". Anal. Chem., 2013, 2386, (3), 8605-8629.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2017, 1742, 7571-7596.