Kowalski A, Jørgensen K, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3767710 A1, 2016-09-27.
Park J H, Hughes D C, O'Brien P Q. "Method for the Synthesis of 2-Methyl-4-[4-(3-methylphenyl)piperazin-1-yl]butan-2-amine hydrochloride" [P]. US Patent, US 9600745 B2, 2019-07-05.
发明人徐明华,钱学锋,王建平. "A Process for Preparing High-Purity 2-Methyl-4-[4-(3-methylphenyl)piperazin-1-yl]butan-2-amine hydrochloride" [P]. 中国发明专利, 专利号 CN 110044725 A, 授权公告日 2018-02-08.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2012, 470, 4832-4840.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2021, 689, (10), 9641-9662.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 2-Methyl-4-[4-(3-methylphenyl)piperazin-1-yl]butan-2-amine hydrochloride Using HRMS and NMR". Anal. Chem., 2015, 1462, (9), 6657-6675.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2011, 2463, (3), 3942-3956.