Brown S R, Johnson M A, Stevens L M. "一种的合成方法" [P]. US Patent, US 11187468 B2, 2024-08-05.
Yamamoto T, Thompson G K, Lee S K. "Method for the Synthesis of 2,2,6,6-tetramethylpiperazine;dihydrochloride" [P]. US Patent, US 10231717 B2, 2020-07-15.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2021, 2189, 917-946.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2015, 1690, (9), 4888-4899.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 2,2,6,6-tetramethylpiperazine;dihydrochloride Using HRMS and NMR". J. Sep. Sci., 2015, 696, 823-828.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2016, 394, 4893-4899.