发明人郭海燕,杨光,陈志强. "Method for the Synthesis of 1-methyl-1H,4H,5H,6H-pyrrolo[3,4-c]pyrazole dihydrochloride" [P]. 中国发明专利, 专利号 CN 117970144 A, 授权公告日 2025-02-26.
Schröder R, Johansson L, Sørensen M. "A Process for Preparing High-Purity 1-methyl-1H,4H,5H,6H-pyrrolo[3,4-c]pyrazole dihydrochloride" [P]. European Patent, EP 3756023 A1, 2015-12-25.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2022, 624, 1924-1945.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2020, 1278, 3449-3460.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 1-methyl-1H,4H,5H,6H-pyrrolo[3,4-c]pyrazole dihydrochloride Using HRMS and NMR". Chromatographia, 2020, 241, 5630-5637.