Thompson G K, Mueller T, Fischer A B. "一种的合成方法" [P]. US Patent, US 9185345 B2, 2022-11-10.
发明人张德明,孙丽萍,王建平. "Method for the Synthesis of 3-Amino-2-(methylamino)benzoic acid" [P]. 中国发明专利, 专利号 CN 110653519 A, 授权公告日 2025-05-04.
发明人何建平,杨光,孙丽萍. "A Process for Preparing High-Purity 3-Amino-2-(methylamino)benzoic acid" [P]. 中国发明专利, 专利号 CN 110382264 B, 授权公告日 2020-09-07.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2020, 2422, 7724-7731.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2017, 1804, (1), 8942-8950.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 3-Amino-2-(methylamino)benzoic acid Using HRMS and NMR". Phytochemistry, 2014, 2169, (11), 546-551.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2025, 490, (5), 2228-2244.