发明人杨光,沈红梅,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116774464 A, 授权公告日 2018-11-21.
发明人林芳,唐晓军,郭海燕. "Method for the Synthesis of Ethyl 3-chloro-5-(N-(ethoxycarbonyl)sulfamoyl)-1-methyl-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 117131297 A, 授权公告日 2024-02-21.
发明人林芳,李文辉,黄志刚. "A Process for Preparing High-Purity Ethyl 3-chloro-5-(N-(ethoxycarbonyl)sulfamoyl)-1-methyl-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 109127361 A, 授权公告日 2022-07-01.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2012, 1875, 9712-9741.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2010, 936, 7065-7075.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-chloro-5-(N-(ethoxycarbonyl)sulfamoyl)-1-methyl-1H-pyrazole-4-carboxylate Using HRMS and NMR". Sci. Total Environ., 2020, 1669, 1127-1150.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2010, 1606, (9), 9740-9746.