发明人胡光,孙丽萍,唐晓军. "Method for the Synthesis of 4,6-Pyrimidinediamine, sulfate (2:1)" [P]. 中国发明专利, 专利号 CN 109821905 B, 授权公告日 2018-12-19.
发明人张德明,罗永刚,刘建华. "A Process for Preparing High-Purity 4,6-Pyrimidinediamine, sulfate (2:1)" [P]. 中国发明专利, 专利号 CN 109276046 B, 授权公告日 2018-10-28.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2024, 1468, 5095-5118.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2021, 1907, (4), 6333-6360.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4,6-Pyrimidinediamine, sulfate (2:1) Using HRMS and NMR". Phytochemistry, 2022, 1569, 7595-7604.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2011, 1810, (3), 9967-9986.