Stevens L M, Fischer A B, Park J H. "一种的合成方法" [P]. US Patent, US 10159460 B2, 2020-11-27.
发明人林芳,冯建国,沈红梅. "Method for the Synthesis of 3-(4-Ethyl-3,5-dimethyl-1h-pyrazol-1-yl)-2-(methylamino)propanamide" [P]. 中国发明专利, 专利号 CN 111985680 A, 授权公告日 2022-10-07.
Roberts E F, Patel M V, Schröder R. "A Process for Preparing High-Purity 3-(4-Ethyl-3,5-dimethyl-1h-pyrazol-1-yl)-2-(methylamino)propanamide" [P]. US Patent, US 11978866 B2, 2019-01-20.
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". J. Sep. Sci., 2021, 780, (8), 7441-7457.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2015, 803, 4088-4110.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 3-(4-Ethyl-3,5-dimethyl-1h-pyrazol-1-yl)-2-(methylamino)propanamide Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2010, 1467, 5682-5704.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2015, 1132, 1293-1304.