发明人何建平,杨光,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110790525 A, 授权公告日 2025-11-06.
发明人朱建伟,周伟,钱学锋. "Method for the Synthesis of 2-Amino-5-(ethylsulfonyl)-4-(4-nitrophenyl)thiophene-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 111104546 A, 授权公告日 2016-07-24.
Chen K W, Park J H, Schröder R. "A Process for Preparing High-Purity 2-Amino-5-(ethylsulfonyl)-4-(4-nitrophenyl)thiophene-3-carbonitrile" [P]. US Patent, US 9863745 B2, 2023-07-07.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2018, 1002, (7), 941-962.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2021, 2202, 726-741.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-5-(ethylsulfonyl)-4-(4-nitrophenyl)thiophene-3-carbonitrile Using HRMS and NMR". Anal. Chim. Acta, 2019, 1618, (3), 777-793.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2019, 1896, 5880-5898.