发明人李文辉,何建平,周伟. "Method for the Synthesis of ethyl 5-(diethoxymethyl)-1-phenyl-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 115987830 A, 授权公告日 2017-09-27.
发明人沈红梅,王建平,郭海燕. "A Process for Preparing High-Purity ethyl 5-(diethoxymethyl)-1-phenyl-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 117854747 A, 授权公告日 2019-11-16.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of ethyl 5-(diethoxymethyl)-1-phenyl-1H-pyrazole-4-carboxylate in Pharmaceutical Formulations". Molecules, 2012, 1595, (7), 3126-3143.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of ethyl 5-(diethoxymethyl)-1-phenyl-1H-pyrazole-4-carboxylate as an Impurity". J. Chromatogr. A, 2015, 2244, (6), 9390-9402.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 5-(diethoxymethyl)-1-phenyl-1H-pyrazole-4-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2013, 1340, (6), 3553-3567.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate ethyl 5-(diethoxymethyl)-1-phenyl-1H-pyrazole-4-carboxylate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2011, 2180, (1), 5495-5515.