发明人沈红梅,杨光,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111519191 A, 授权公告日 2021-09-10.
Fischer A B, Yamamoto T, Schröder R. "Method for the Synthesis of Methyl 2-amino-5-ethylthiophene-3-carboxylate" [P]. US Patent, US 9859116 B2, 2023-07-01.
发明人黄志刚,何建平,王建平. "A Process for Preparing High-Purity Methyl 2-amino-5-ethylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110915895 A, 授权公告日 2022-11-14.
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". Phytochemistry, 2018, 1043, (2), 4062-4066.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2017, 1041, (11), 7033-7047.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-amino-5-ethylthiophene-3-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2025, 2135, 6591-6615.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2023, 634, (1), 9902-9913.