发明人何建平,周伟,黄志刚. "Method for the Synthesis of Methyl 2-methyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 110693698 A, 授权公告日 2024-10-21.
发明人赵玉洁,唐晓军,韩伟. "A Process for Preparing High-Purity Methyl 2-methyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 112687825 A, 授权公告日 2025-11-09.
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". J. Pharm. Biomed. Anal., 2012, 1928, 82-101.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2010, 1798, (4), 6840-6867.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-methyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-5-carboxylate Using HRMS and NMR". Anal. Chem., 2016, 406, (8), 8101-8117.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2023, 1135, 7319-7328.