Johnson M A, Klinger H, Lee S K. "一种的合成方法" [P]. US Patent, US 11859762 B2, 2018-01-19.
发明人马晓峰,周伟,钱学锋. "Method for the Synthesis of 2-Amino-5-methoxy-4-(2-methoxyethoxy)benzoic acid" [P]. 中国发明专利, 专利号 CN 110268212 B, 授权公告日 2019-06-04.
发明人刘建华,朱建伟,李文辉. "A Process for Preparing High-Purity 2-Amino-5-methoxy-4-(2-methoxyethoxy)benzoic acid" [P]. 中国发明专利, 专利号 CN 115735806 B, 授权公告日 2020-08-03.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2019, 1497, 6500-6513.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2014, 1943, (9), 643-661.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-5-methoxy-4-(2-methoxyethoxy)benzoic acid Using HRMS and NMR". Biomed. Chromatogr., 2015, 558, 9466-9484.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2011, 2157, 6282-6308.