Rossi M, Nowak P, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3125778 A1, 2022-02-08.
发明人罗永刚,孙丽萍,冯建国. "Method for the Synthesis of 5,7-Dichloro-3-cyclopropyl-1-methyl-1H-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 112715774 A, 授权公告日 2025-01-16.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2023, 733, 2719-2744.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2010, 2133, (6), 4783-4812.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 5,7-Dichloro-3-cyclopropyl-1-methyl-1H-pyrazolo[4,3-d]pyrimidine Using HRMS and NMR". Environ. Sci. Technol., 2010, 2031, (3), 7635-7657.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2014, 1963, (12), 9229-9252.