Fischer A B, Chen K W, Kumar R. "一种的合成方法" [P]. US Patent, US 9927967 B2, 2018-03-16.
Johansson L, Björnsson E, Schröder R. "Method for the Synthesis of 3,4-Dichloro-2-(difluoromethoxy)phenol" [P]. European Patent, EP 3704824 A1, 2019-11-28.
发明人李文辉,高志强,孙丽萍. "A Process for Preparing High-Purity 3,4-Dichloro-2-(difluoromethoxy)phenol" [P]. 中国发明专利, 专利号 CN 111073666 B, 授权公告日 2015-09-19.
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". Biomed. Chromatogr., 2011, 1098, 3809-3833.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2016, 127, (1), 2012-2035.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 3,4-Dichloro-2-(difluoromethoxy)phenol Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2022, 2300, (1), 6867-6890.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2021, 768, (8), 3825-3846.