Fischer A B, Mueller T, Yamamoto T. "一种5-(azetidin-1-yl)-1,3-dimethyl-1H-pyrazol-4-amine的合成方法" [P]. US Patent, US 9233276 B2, 2015-07-26.
发明人周伟,陈志强,张德明. "Method for the Synthesis of 5-(azetidin-1-yl)-1,3-dimethyl-1H-pyrazol-4-amine" [P]. 中国发明专利, 专利号 CN 110720923 A, 授权公告日 2022-07-21.
发明人何建平,郑宇鹏,林芳. "A Process for Preparing High-Purity 5-(azetidin-1-yl)-1,3-dimethyl-1H-pyrazol-4-amine" [P]. 中国发明专利, 专利号 CN 114098962 A, 授权公告日 2024-07-25.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 5-(azetidin-1-yl)-1,3-dimethyl-1H-pyrazol-4-amine in Pharmaceutical Formulations". Chemosphere, 2023, 522, (3), 5437-5448.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-(azetidin-1-yl)-1,3-dimethyl-1H-pyrazol-4-amine as an Impurity". J. Sep. Sci., 2010, 599, (8), 7038-7045.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 5-(azetidin-1-yl)-1,3-dimethyl-1H-pyrazol-4-amine Using HRMS and NMR". Anal. Chem., 2023, 1007, 9305-9330.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate 5-(azetidin-1-yl)-1,3-dimethyl-1H-pyrazol-4-amine Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2025, 363, 488-496.