Kowalski A, Mueller T C, Johansson L. "Method for the Synthesis of 6-(Methylthio)pyridazin-3(2H)-one" [P]. European Patent, EP 3329212 A1, 2022-10-10.
Davis P L, Stevens L M, Hughes D C. "A Process for Preparing High-Purity 6-(Methylthio)pyridazin-3(2H)-one" [P]. US Patent, US 10454300 B2, 2025-04-25.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 6-(甲硫基)哒嗪-3(2H)-酮 in Pharmaceutical Formulations". Anal. Methods, 2012, 171, 3034-3055.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 6-(甲硫基)哒嗪-3(2H)-酮 as an Impurity". Anal. Chem., 2013, 533, (2), 1578-1595.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 6-(Methylthio)pyridazin-3(2H)-one Using HRMS and NMR". Molecules, 2014, 708, 1660-1679.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 6-(甲硫基)哒嗪-3(2H)-酮 Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2018, 2316, 6497-6500.