Lee S K, Patel M V, Anderson J P. "一种的合成方法" [P]. US Patent, US 9984489 B2, 2022-06-12.
Kowalski A, Nielsen H, Nowak P. "Method for the Synthesis of 4-({[(pyridin-3-yl)methyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one" [P]. European Patent, EP 3071914 A1, 2020-10-07.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2019, 1195, (7), 422-433.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2018, 749, (3), 5834-5848.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 4-({[(pyridin-3-yl)methyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one Using HRMS and NMR". Anal. Chem., 2022, 1842, 9782-9805.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2017, 1140, (10), 3184-3206.