发明人何建平,郑宇鹏,唐晓军. "Method for the Synthesis of Methyl 4-chloro-5-methyl-1h-pyrazole-3-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 114873966 A, 授权公告日 2022-09-23.
Mueller T C, Johansson L, Lefèvre J P. "A Process for Preparing High-Purity Methyl 4-chloro-5-methyl-1h-pyrazole-3-carboxylate hydrochloride" [P]. European Patent, EP 3107296 A1, 2022-07-09.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2025, 1121, 3951-3961.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2010, 1685, 1197-1213.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-chloro-5-methyl-1h-pyrazole-3-carboxylate hydrochloride Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2018, 334, (3), 9951-9956.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2015, 82, (5), 3911-3926.