发明人孙丽萍,钱学锋,郑宇鹏. "一种己酮可可碱杂质19的合成方法" [P]. 中国发明专利, 专利号 CN 114066209 A, 授权公告日 2021-03-13.
发明人林芳,朱建伟,李文辉. "Method for the Synthesis of Pentoxifylline Impurity 19" [P]. 中国发明专利, 专利号 CN 109269772 B, 授权公告日 2019-12-09.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of 己酮可可碱杂质19 in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 1515, (5), 1314-1319.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 己酮可可碱杂质19 as an Impurity". Sci. Total Environ., 2012, 1835, (5), 2901-2922.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Pentoxifylline Impurity 19 Using HRMS and NMR". J. Sep. Sci., 2018, 2276, 4622-4641.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 己酮可可碱杂质19 Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2012, 109, 7889-7897.