Williams B T, Hughes D C, Chen K W. "一种的合成方法" [P]. US Patent, US 9637174 B2, 2025-03-19.
发明人郑宇鹏,沈红梅,冯建国. "Method for the Synthesis of 4-Ethynylpyridazine" [P]. 中国发明专利, 专利号 CN 114441032 B, 授权公告日 2025-04-03.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2022, 1680, (4), 3852-3878.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2020, 1847, 8009-8032.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethynylpyridazine Using HRMS and NMR". Talanta, 2014, 1370, 229-232.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2022, 1969, 1909-1928.