Sørensen M, Martínez F, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3166616 A1, 2024-08-03.
Sørensen M, Jørgensen K, Nielsen H. "Method for the Synthesis of 4,5-Diamino-1-methyl-1H-pyrazol-3(2H)-one" [P]. European Patent, EP 3543929 A1, 2023-03-20.
发明人马晓峰,唐晓军,李文辉. "A Process for Preparing High-Purity 4,5-Diamino-1-methyl-1H-pyrazol-3(2H)-one" [P]. 中国发明专利, 专利号 CN 111278260 B, 授权公告日 2023-06-15.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2017, 1220, (6), 8773-8796.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2024, 497, (3), 4578-4587.