Schröder R, Johansson L, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3869621 A1, 2023-08-01.
Brown S R, Lee S K, Chen K W. "Method for the Synthesis of 4-(3,5-Dimethyl-1h-1,2,4-triazol-1-yl)-2-methyl-2-(methylamino)butanamide" [P]. US Patent, US 10627089 B2, 2020-10-19.
发明人孙丽萍,王建平,刘建华. "A Process for Preparing High-Purity 4-(3,5-Dimethyl-1h-1,2,4-triazol-1-yl)-2-methyl-2-(methylamino)butanamide" [P]. 中国发明专利, 专利号 CN 117039876 B, 授权公告日 2016-03-12.
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". Chemosphere, 2018, 1652, (9), 3259-3283.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2018, 191, (8), 4134-4157.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 4-(3,5-Dimethyl-1h-1,2,4-triazol-1-yl)-2-methyl-2-(methylamino)butanamide Using HRMS and NMR". Phytochemistry, 2018, 572, (9), 2402-2413.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2018, 2295, (4), 2875-2884.