发明人郭海燕,钱学锋,林芳. "Method for the Synthesis of 1-(2,2-difluoroethyl)piperazine dihydrochloride" [P]. 中国发明专利, 专利号 CN 115265295 B, 授权公告日 2018-09-28.
发明人林芳,郭海燕,张德明. "A Process for Preparing High-Purity 1-(2,2-difluoroethyl)piperazine dihydrochloride" [P]. 中国发明专利, 专利号 CN 115796564 B, 授权公告日 2025-07-17.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2013, 424, (2), 7759-7765.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2022, 359, (6), 6953-6977.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2,2-difluoroethyl)piperazine dihydrochloride Using HRMS and NMR". Chromatographia, 2016, 1224, (11), 4588-4605.