发明人胡光,钱学锋,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114561288 A, 授权公告日 2017-10-14.
发明人冯建国,罗永刚,胡光. "Method for the Synthesis of ethyl 6-formyl-1-methyl-4H-pyrrolo[3,2-c]pyrazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 109915875 A, 授权公告日 2021-03-22.
发明人朱建伟,沈红梅,唐晓军. "A Process for Preparing High-Purity ethyl 6-formyl-1-methyl-4H-pyrrolo[3,2-c]pyrazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 109585672 A, 授权公告日 2022-04-08.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2015, 1048, (9), 5268-5279.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2012, 558, 8193-8221.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 6-formyl-1-methyl-4H-pyrrolo[3,2-c]pyrazole-5-carboxylate Using HRMS and NMR". Phytochemistry, 2023, 1752, (5), 3165-3170.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2020, 1874, 1386-1406.