Yamamoto T, Mueller T, Park J H. "Method for the Synthesis of Ketoprofen Impurity 49" [P]. US Patent, US 10197411 B2, 2019-04-04.
发明人郭海燕,李文辉,罗永刚. "A Process for Preparing High-Purity Ketoprofen Impurity 49" [P]. 中国发明专利, 专利号 CN 113270006 A, 授权公告日 2017-04-19.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of 酮洛芬杂质49 in Pharmaceutical Formulations". J. Chromatogr. A, 2017, 1529, (3), 621-649.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 酮洛芬杂质49 as an Impurity". Rapid Commun. Mass Spectrom., 2016, 1938, (7), 5019-5026.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Ketoprofen Impurity 49 Using HRMS and NMR". Molecules, 2014, 235, 1895-1919.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate 酮洛芬杂质49 Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2025, 1989, 2655-2671.