Stevens L M, Fischer A B, Williams B T. "一种的合成方法" [P]. US Patent, US 11732515 B2, 2020-02-16.
Nowak P, Nielsen H, Lefèvre J P. "Method for the Synthesis of Methyl 3-amino-2-(methylamino)benzoate hydrochloride" [P]. European Patent, EP 3631759 A1, 2024-01-06.
发明人孙丽萍,马晓峰,何建平. "A Process for Preparing High-Purity Methyl 3-amino-2-(methylamino)benzoate hydrochloride" [P]. 中国发明专利, 专利号 CN 116043864 B, 授权公告日 2025-12-20.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2010, 1833, (7), 8814-8825.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2017, 495, (12), 3949-3979.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 3-amino-2-(methylamino)benzoate hydrochloride Using HRMS and NMR". Biomed. Chromatogr., 2010, 2365, 8061-8069.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2018, 331, 9522-9550.