发明人胡光,郑宇鹏,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109092436 A, 授权公告日 2023-05-16.
发明人郭海燕,冯建国,孙丽萍. "Method for the Synthesis of 4,5-Diamino-3-(difluoromethyl)pyridine-2-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 117384505 B, 授权公告日 2025-05-06.
发明人赵玉洁,何建平,朱建伟. "A Process for Preparing High-Purity 4,5-Diamino-3-(difluoromethyl)pyridine-2-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 116006336 B, 授权公告日 2021-07-26.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2024, 148, (5), 4038-4064.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2022, 435, (9), 6923-6934.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4,5-Diamino-3-(difluoromethyl)pyridine-2-sulfonyl chloride Using HRMS and NMR". J. Chromatogr. A, 2022, 471, 1457-1469.