Brown S R, Hughes D C, Johnson M A. "一种的合成方法" [P]. US Patent, US 10342323 B2, 2021-12-23.
Chen K W, Roberts E F, Anderson J P. "Method for the Synthesis of 4-Chloro-3-(difluoromethyl)-2-methoxypyridine" [P]. US Patent, US 11861919 B2, 2023-08-11.
Stevens L M, Chen K W, Hughes D C. "A Process for Preparing High-Purity 4-Chloro-3-(difluoromethyl)-2-methoxypyridine" [P]. US Patent, US 11855106 B2, 2018-05-18.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2015, 1981, (7), 8206-8217.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2012, 1424, (6), 2905-2917.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-3-(difluoromethyl)-2-methoxypyridine Using HRMS and NMR". Chemosphere, 2013, 1466, (10), 4272-4293.