发明人刘建华,徐明华,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113834151 A, 授权公告日 2019-07-04.
发明人何建平,周伟,高志强. "Method for the Synthesis of Diethyl 5-(2-fluorophenyl)-3-hydroxy-1-methyl-1H-pyrrole-2,4-dicarboxylate" [P]. 中国发明专利, 专利号 CN 108617261 B, 授权公告日 2019-01-25.
发明人徐明华,黄志刚,刘建华. "A Process for Preparing High-Purity Diethyl 5-(2-fluorophenyl)-3-hydroxy-1-methyl-1H-pyrrole-2,4-dicarboxylate" [P]. 中国发明专利, 专利号 CN 109050711 B, 授权公告日 2022-01-02.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2015, 263, (8), 6473-6495.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2010, 640, 5938-5951.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Diethyl 5-(2-fluorophenyl)-3-hydroxy-1-methyl-1H-pyrrole-2,4-dicarboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2015, 166, (5), 6634-6649.