发明人周伟,徐明华,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109157364 A, 授权公告日 2022-09-21.
发明人周伟,刘建华,韩伟. "Method for the Synthesis of 4-Butyl-4H-dithieno[3,2-b:2',3'-d]pyrrole" [P]. 中国发明专利, 专利号 CN 116478121 B, 授权公告日 2018-05-05.
Klinger H, Johnson M A, Lee S K. "A Process for Preparing High-Purity 4-Butyl-4H-dithieno[3,2-b:2',3'-d]pyrrole" [P]. US Patent, US 11655528 B2, 2020-06-19.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2014, 2118, (9), 8306-8318.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2013, 1350, (11), 7604-7608.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4-Butyl-4H-dithieno[3,2-b:2',3'-d]pyrrole Using HRMS and NMR". Talanta, 2018, 1354, (9), 599-618.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2015, 1117, 3919-3941.