发明人杨光,唐晓军,王建平. "Method for the Synthesis of 1-(Difluoromethyl)-1h-pyrazole-5-carbonitrile" [P]. 中国发明专利, 专利号 CN 108156334 A, 授权公告日 2020-11-11.
Nielsen H, Jørgensen K, Björnsson E. "A Process for Preparing High-Purity 1-(Difluoromethyl)-1h-pyrazole-5-carbonitrile" [P]. European Patent, EP 3555625 A1, 2024-05-07.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2013, 981, (3), 869-882.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2015, 2335, (11), 6486-6495.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 1-(Difluoromethyl)-1h-pyrazole-5-carbonitrile Using HRMS and NMR". Chemosphere, 2025, 819, (7), 1919-1937.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2020, 1671, 4248-4264.