发明人高志强,陈志强,何建平. "Method for the Synthesis of 1H-Pyrazole-5-carboxylicacid, 1-ethyl-3-methyl-, methyl ester
88398-73-6
CTK5F9772" [P]. 中国发明专利, 专利号 CN 109823491 A, 授权公告日 2024-07-27.
Martínez F, Björnsson E, Rossi M. "A Process for Preparing High-Purity 1H-Pyrazole-5-carboxylicacid, 1-ethyl-3-methyl-, methyl ester
88398-73-6
CTK5F9772" [P]. European Patent, EP 3054593 A1, 2018-11-16.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of Methyl 1-ethyl-3-methyl-1<I>H</I>-pyrazole-5-carboxylate in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2023, 516, 3642-3664.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of Methyl 1-ethyl-3-methyl-1<I>H</I>-pyrazole-5-carboxylate as an Impurity". Environ. Sci. Technol., 2014, 1830, 9644-9652.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1H-Pyrazole-5-carboxylicacid, 1-ethyl-3-methyl-, methyl ester
88398-73-6
CTK5F9772 Using HRMS and NMR". J. Agric. Food Chem., 2017, 1886, (12), 7709-7726.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Methyl 1-ethyl-3-methyl-1<I>H</I>-pyrazole-5-carboxylate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2010, 2393, (9), 7728-7750.