发明人李文辉,韩伟,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110085100 A, 授权公告日 2025-11-02.
发明人钱学锋,韩伟,杨光. "Method for the Synthesis of 1-Methyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 113089316 B, 授权公告日 2020-08-01.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2018, 2440, (5), 6831-6854.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2017, 484, (12), 2421-2440.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one Using HRMS and NMR". J. Sep. Sci., 2011, 681, (8), 8282-8303.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2016, 270, (10), 5884-5909.