发明人刘建华,王建平,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113656077 A, 授权公告日 2018-10-24.
Mueller T, Roberts E F, Fischer A B. "Method for the Synthesis of 2,4-Dichloropyrido[2,3-d]pyridazin-5(6H)-one" [P]. US Patent, US 11578913 B2, 2020-04-27.
Chen K W, Brown S R, O'Brien P Q. "A Process for Preparing High-Purity 2,4-Dichloropyrido[2,3-d]pyridazin-5(6H)-one" [P]. US Patent, US 11875931 B2, 2018-12-15.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2013, 442, (4), 4755-4782.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2012, 526, 7013-7024.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2,4-Dichloropyrido[2,3-d]pyridazin-5(6H)-one Using HRMS and NMR". Environ. Sci. Technol., 2013, 201, 5566-5582.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2017, 310, (8), 3972-4001.