发明人杨光,黄志刚,马晓峰. "Method for the Synthesis of 3-Bromo-1-ethyl-5-(methylamino)-1H-pyrazole-4-carboxamide" [P]. 中国发明专利, 专利号 CN 115119925 B, 授权公告日 2024-07-17.
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". J. Sep. Sci., 2017, 1293, (9), 9933-9938.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2017, 123, (12), 6261-6277.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 3-Bromo-1-ethyl-5-(methylamino)-1H-pyrazole-4-carboxamide Using HRMS and NMR". Anal. Methods, 2016, 1917, 6334-6340.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2020, 1633, (5), 421-426.