发明人王建平,马晓峰,林芳. "Method for the Synthesis of 3-Ethyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116279558 B, 授权公告日 2023-06-28.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2016, 2135, 4250-4276.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2024, 1002, (2), 1706-1722.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-2-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2025, 2270, 1939-1946.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2019, 287, (12), 8747-8769.