发明人高志强,孙丽萍,何建平. "Method for the Synthesis of 4-ethyl-4H-thieno[3,2-b]pyrrole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113330094 A, 授权公告日 2019-03-04.
Roberts E F, O'Brien P Q, Brown S R. "A Process for Preparing High-Purity 4-ethyl-4H-thieno[3,2-b]pyrrole-5-carboxylic acid" [P]. US Patent, US 11869544 B2, 2021-03-09.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2013, 499, 1821-1839.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2024, 2121, 2449-2455.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-ethyl-4H-thieno[3,2-b]pyrrole-5-carboxylic acid Using HRMS and NMR". Food Chem., 2024, 617, (10), 2354-2377.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2016, 1849, (1), 1523-1553.