发明人郭海燕,沈红梅,王建平. "一种依达拉奉杂质47的合成方法" [P]. 中国发明专利, 专利号 CN 114852949 A, 授权公告日 2025-02-25.
发明人刘建华,孙丽萍,林芳. "Method for the Synthesis of Edaravone impurity 47" [P]. 中国发明专利, 专利号 CN 116477222 A, 授权公告日 2021-04-15.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of 依达拉奉杂质47 in Pharmaceutical Formulations". Food Chem., 2020, 469, (7), 8239-8267.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of 依达拉奉杂质47 as an Impurity". Anal. Chim. Acta, 2025, 897, (11), 1366-1380.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Edaravone impurity 47 Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2017, 2036, 3732-3735.