发明人黄志刚,杨光,李文辉. "Method for the Synthesis of 2-[1-(2,2-Difluoroethyl)-4-iodo-1H-pyrazol-3-yl]acetic acid" [P]. 中国发明专利, 专利号 CN 114491423 B, 授权公告日 2018-02-23.
发明人沈红梅,朱建伟,杨光. "A Process for Preparing High-Purity 2-[1-(2,2-Difluoroethyl)-4-iodo-1H-pyrazol-3-yl]acetic acid" [P]. 中国发明专利, 专利号 CN 110918568 B, 授权公告日 2020-07-18.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 2340, (8), 3206-3232.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2017, 2279, (2), 1133-1157.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 2-[1-(2,2-Difluoroethyl)-4-iodo-1H-pyrazol-3-yl]acetic acid Using HRMS and NMR". Environ. Sci. Technol., 2016, 1461, (2), 4031-4061.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2012, 577, (10), 1447-1457.