发明人罗永刚,郑宇鹏,朱建伟. "Method for the Synthesis of 4,6-Dimethyl-1,4-dihydropyrazolo[4,3-c]pyrazol-3-amine" [P]. 中国发明专利, 专利号 CN 111282941 A, 授权公告日 2024-08-08.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2014, 1472, 175-180.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2013, 1414, (11), 9806-9831.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4,6-Dimethyl-1,4-dihydropyrazolo[4,3-c]pyrazol-3-amine Using HRMS and NMR". Molecules, 2011, 1799, 1181-1189.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2017, 1644, (10), 561-586.