发明人徐明华,高志强,孙丽萍. "Method for the Synthesis of 1H-Pyrazolo[3,4-d]pyridazine" [P]. 中国发明专利, 专利号 CN 109906454 B, 授权公告日 2020-03-26.
发明人朱建伟,韩伟,胡光. "A Process for Preparing High-Purity 1H-Pyrazolo[3,4-d]pyridazine" [P]. 中国发明专利, 专利号 CN 114823871 B, 授权公告日 2018-12-23.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2025, 277, 5264-5281.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2025, 328, 8625-8638.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 1H-Pyrazolo[3,4-d]pyridazine Using HRMS and NMR". Chemosphere, 2020, 490, 6272-6301.