Davis P L, Chen K W, Yamamoto T. "Method for the Synthesis of 4-Benzylpiperazine-2-carboxylic acid hydrochloride" [P]. US Patent, US 9471226 B2, 2017-07-15.
Lefèvre J P, Sørensen M, Johansson L. "A Process for Preparing High-Purity 4-Benzylpiperazine-2-carboxylic acid hydrochloride" [P]. European Patent, EP 3000672 A1, 2025-09-15.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2021, 1931, (1), 6574-6592.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2025, 292, (5), 8670-8696.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 4-Benzylpiperazine-2-carboxylic acid hydrochloride Using HRMS and NMR". Molecules, 2013, 2353, 3059-3078.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2010, 1016, (7), 8797-8802.