O'Brien P Q, Kumar R, Mueller T. "一种的合成方法" [P]. US Patent, US 10084629 B2, 2025-04-19.
发明人刘建华,徐明华,朱建伟. "Method for the Synthesis of Ethyl 5,6-dihydro-4h-cyclopenta[b]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 109386354 B, 授权公告日 2020-01-22.
发明人胡光,何建平,马晓峰. "A Process for Preparing High-Purity Ethyl 5,6-dihydro-4h-cyclopenta[b]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 114196104 B, 授权公告日 2021-03-04.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2016, 283, 8073-8090.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2010, 166, (11), 2521-2530.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5,6-dihydro-4h-cyclopenta[b]thiophene-2-carboxylate Using HRMS and NMR". J. Nat. Prod., 2018, 1227, (5), 298-313.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2011, 1426, (9), 849-871.