Rossi M, Björnsson E, Lefèvre J P. "Method for the Synthesis of 2-[1-Cyano-2-(dimethylamino)vinyl]-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile" [P]. European Patent, EP 3494713 A1, 2018-12-24.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2019, 1151, (9), 5005-5028.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2020, 1657, (10), 2095-2115.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 2-[1-Cyano-2-(dimethylamino)vinyl]-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile Using HRMS and NMR". Environ. Sci. Technol., 2019, 1715, (2), 6641-6653.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2014, 1275, (1), 3821-3846.