Björnsson E, Lefèvre J P, Schröder R. "一种的合成方法" [P]. European Patent, EP 3040589 A1, 2015-04-20.
发明人徐明华,王建平,胡光. "Method for the Synthesis of 4-Ethynyl-1-methyl-1H-pyrazole-5-carbonitrile" [P]. 中国发明专利, 专利号 CN 114606541 B, 授权公告日 2015-08-03.
Hughes D C, Williams B T, Klinger H. "A Process for Preparing High-Purity 4-Ethynyl-1-methyl-1H-pyrazole-5-carbonitrile" [P]. US Patent, US 11438340 B2, 2017-04-19.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2015, 2227, (5), 2811-2820.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2010, 1479, 5187-5217.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethynyl-1-methyl-1H-pyrazole-5-carbonitrile Using HRMS and NMR". J. Nat. Prod., 2022, 1531, (6), 4625-4629.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2021, 389, 2078-2107.