发明人林芳,张德明,朱建伟. "Method for the Synthesis of 3-(5,6-Dihydro-4h-cyclopenta[b]thiophene-2-carboxamido)propanoic acid" [P]. 中国发明专利, 专利号 CN 111391539 B, 授权公告日 2016-08-15.
发明人朱建伟,沈红梅,郑宇鹏. "A Process for Preparing High-Purity 3-(5,6-Dihydro-4h-cyclopenta[b]thiophene-2-carboxamido)propanoic acid" [P]. 中国发明专利, 专利号 CN 115085570 A, 授权公告日 2018-03-12.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2020, 634, 9443-9472.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2015, 392, 8763-8785.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 3-(5,6-Dihydro-4h-cyclopenta[b]thiophene-2-carboxamido)propanoic acid Using HRMS and NMR". Talanta, 2020, 646, (3), 8674-8694.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2017, 1130, (3), 5134-5150.