发明人周伟,杨光,刘建华. "Method for the Synthesis of Methyl 3-amino-1-(2,2-difluoroethyl)-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 116661101 A, 授权公告日 2025-03-11.
Kowalski A, Nielsen H, Johansson L. "A Process for Preparing High-Purity Methyl 3-amino-1-(2,2-difluoroethyl)-1H-pyrazole-4-carboxylate" [P]. European Patent, EP 3212989 A1, 2023-03-21.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2019, 2291, (11), 1434-1439.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2010, 1717, (6), 6335-6363.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 3-amino-1-(2,2-difluoroethyl)-1H-pyrazole-4-carboxylate Using HRMS and NMR". Anal. Chem., 2023, 577, (10), 8036-8062.