Yamamoto T, Chen K W, Klinger H. "一种的合成方法" [P]. US Patent, US 11547590 B2, 2018-05-19.
发明人冯建国,郭海燕,唐晓军. "Method for the Synthesis of 2-(Ethylamino)-[1,2,4]thiadiazolo[2,3-a]pyridin-4-ium chloride" [P]. 中国发明专利, 专利号 CN 117771738 B, 授权公告日 2019-09-23.
Rossi M, Nowak P, Björnsson E. "A Process for Preparing High-Purity 2-(Ethylamino)-[1,2,4]thiadiazolo[2,3-a]pyridin-4-ium chloride" [P]. European Patent, EP 3582338 A1, 2016-10-27.
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". Rapid Commun. Mass Spectrom., 2015, 1917, 8793-8809.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2010, 1979, 320-348.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Ethylamino)-[1,2,4]thiadiazolo[2,3-a]pyridin-4-ium chloride Using HRMS and NMR". Molecules, 2025, 906, (12), 5200-5225.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2017, 1230, (8), 2660-2687.