发明人何建平,林芳,沈红梅. "Method for the Synthesis of 4-Chloro-5-(cyclopropylamino)-2-(3,3-dimethyl-2-oxobutyl)pyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 112686130 A, 授权公告日 2024-04-02.
Patel M V, Roberts E F, O'Brien P Q. "A Process for Preparing High-Purity 4-Chloro-5-(cyclopropylamino)-2-(3,3-dimethyl-2-oxobutyl)pyridazin-3(2H)-one" [P]. US Patent, US 10515563 B2, 2018-12-20.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2023, 1727, 1234-1240.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2015, 1019, (6), 9808-9817.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-5-(cyclopropylamino)-2-(3,3-dimethyl-2-oxobutyl)pyridazin-3(2H)-one Using HRMS and NMR". Anal. Methods, 2012, 278, (5), 8478-8490.