发明人徐明华,罗永刚,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109349919 A, 授权公告日 2015-11-02.
Johnson M A, Fischer A B, Yamamoto T. "Method for the Synthesis of tert-Butyl 3-chloro-4,6-dihydropyrrolo[3,4-c]pyrazole-5(1H)-carboxylate" [P]. US Patent, US 9406992 B2, 2020-08-15.
Chen K W, Schröder R, Kumar R. "A Process for Preparing High-Purity tert-Butyl 3-chloro-4,6-dihydropyrrolo[3,4-c]pyrazole-5(1H)-carboxylate" [P]. US Patent, US 10975019 B2, 2019-05-19.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2018, 1097, (12), 6031-6041.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2022, 2147, (9), 9912-9917.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 3-chloro-4,6-dihydropyrrolo[3,4-c]pyrazole-5(1H)-carboxylate Using HRMS and NMR". Chemosphere, 2013, 1426, (3), 6577-6594.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2021, 1589, 6587-6593.