发明人唐晓军,周伟,冯建国. "Method for the Synthesis of Ethyl 5-oxo-4,5-dihydro-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 117864818 B, 授权公告日 2016-08-27.
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". Talanta, 2010, 513, 1699-1702.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2015, 2053, (1), 2662-2681.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-oxo-4,5-dihydro-1H-pyrazole-4-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2018, 2286, (6), 500-516.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2025, 396, (7), 219-231.