发明人李文辉,唐晓军,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117071523 A, 授权公告日 2016-10-01.
发明人张德明,沈红梅,林芳. "Method for the Synthesis of 5-Methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarboxylic Acid Methyl Ester" [P]. 中国发明专利, 专利号 CN 109199200 B, 授权公告日 2015-12-14.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2019, 1185, 5116-5122.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2011, 580, (5), 9899-9907.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 5-Methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarboxylic Acid Methyl Ester Using HRMS and NMR". J. Sep. Sci., 2017, 170, (9), 6401-6410.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2017, 1908, 7123-7132.