Björnsson E, Sørensen M, Johansson L. "Method for the Synthesis of 1-(4-methyl-4H-1,2,4-triazol-3-yl)piperazine dihydrochloride" [P]. European Patent, EP 3972517 A1, 2019-07-26.
Kumar R, Johnson M A, Schröder R. "A Process for Preparing High-Purity 1-(4-methyl-4H-1,2,4-triazol-3-yl)piperazine dihydrochloride" [P]. US Patent, US 10139638 B2, 2022-11-18.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 1-(4-methyl-4H-1,2,4-triazol-3-yl)piperazine dihydrochloride in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 1636, (10), 501-522.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-(4-methyl-4H-1,2,4-triazol-3-yl)piperazine dihydrochloride as an Impurity". Biomed. Chromatogr., 2013, 86, (10), 2787-2801.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1-(4-methyl-4H-1,2,4-triazol-3-yl)piperazine dihydrochloride Using HRMS and NMR". Food Chem., 2023, 1152, (1), 5715-5722.