发明人钱学锋,王建平,沈红梅. "Method for the Synthesis of 5,7-Dimethylbenzofuran-2(3H)-one" [P]. 中国发明专利, 专利号 CN 110310467 B, 授权公告日 2020-02-13.
发明人刘建华,马晓峰,杨光. "A Process for Preparing High-Purity 5,7-Dimethylbenzofuran-2(3H)-one" [P]. 中国发明专利, 专利号 CN 113694477 A, 授权公告日 2017-07-03.
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 in Pharmaceutical Formulations". Chemosphere, 2016, 630, 3999-4005.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2012, 1274, 7349-7377.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 5,7-Dimethylbenzofuran-2(3H)-one Using HRMS and NMR". J. Pharm. Biomed. Anal., 2014, 1074, 6086-6098.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2022, 519, 3629-3648.