Anderson J P, Brown S R, Lee S K. "一种的合成方法" [P]. US Patent, US 10131958 B2, 2015-02-14.
Lefèvre J P, Björnsson E, Martínez F. "Method for the Synthesis of 5-(4-Aminopiperidin-1-yl)-4-chloro-2-ethylpyridazin-3(2H)-one" [P]. European Patent, EP 3544947 A1, 2021-11-03.
发明人周伟,陈志强,赵玉洁. "A Process for Preparing High-Purity 5-(4-Aminopiperidin-1-yl)-4-chloro-2-ethylpyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 113018602 A, 授权公告日 2017-02-09.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2015, 1537, (7), 4223-4247.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2011, 1429, 4678-4682.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 5-(4-Aminopiperidin-1-yl)-4-chloro-2-ethylpyridazin-3(2H)-one Using HRMS and NMR". Talanta, 2015, 2122, 3174-3203.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2025, 2179, (6), 276-279.