发明人郭海燕,韩伟,李文辉. "Method for the Synthesis of 1-(2,4-Difluorophenyl)-3-(1,2,3-thiadiazole-4-carbonyl)thiourea" [P]. 中国发明专利, 专利号 CN 112263896 A, 授权公告日 2019-03-10.
Kowalski A, Nowak P, Schröder R. "A Process for Preparing High-Purity 1-(2,4-Difluorophenyl)-3-(1,2,3-thiadiazole-4-carbonyl)thiourea" [P]. European Patent, EP 3575518 A1, 2025-12-22.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2014, 1620, 1905-1913.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2023, 2415, (4), 3032-3060.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2,4-Difluorophenyl)-3-(1,2,3-thiadiazole-4-carbonyl)thiourea Using HRMS and NMR". Biomed. Chromatogr., 2015, 1687, (7), 6029-6039.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2025, 340, 1515-1527.