发明人沈红梅,唐晓军,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115391969 A, 授权公告日 2015-12-10.
发明人孙丽萍,林芳,赵玉洁. "Method for the Synthesis of Methyl 2-amino-4-cyclopropylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 115560921 B, 授权公告日 2025-10-23.
发明人李文辉,罗永刚,孙丽萍. "A Process for Preparing High-Purity Methyl 2-amino-4-cyclopropylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 115818765 A, 授权公告日 2020-09-18.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2016, 350, 5592-5602.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2022, 1530, (2), 6001-6030.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-amino-4-cyclopropylthiophene-3-carboxylate Using HRMS and NMR". Chemosphere, 2013, 2404, 2694-2719.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2024, 1081, (3), 9103-9113.