发明人郭海燕,沈红梅,王建平. "Method for the Synthesis of 1-[(1-ethyl-3-methyl-1h-pyrazol-4-yl)methyl]-3,5-dimethyl-1h-pyrazol-4-amine" [P]. 中国发明专利, 专利号 CN 109018637 A, 授权公告日 2018-05-28.
Rossi M, Sørensen M, Jørgensen K. "A Process for Preparing High-Purity 1-[(1-ethyl-3-methyl-1h-pyrazol-4-yl)methyl]-3,5-dimethyl-1h-pyrazol-4-amine" [P]. European Patent, EP 3913234 A1, 2019-07-10.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2014, 657, (12), 6774-6780.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2020, 111, (7), 2910-2935.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 1-[(1-ethyl-3-methyl-1h-pyrazol-4-yl)methyl]-3,5-dimethyl-1h-pyrazol-4-amine Using HRMS and NMR". Anal. Chem., 2019, 2286, 3992-4019.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2010, 274, (6), 655-683.