Sørensen M, Mueller T C, Schröder R. "一种的合成方法" [P]. European Patent, EP 3199491 A1, 2022-10-13.
Kumar R, Schröder R, Yamamoto T. "Method for the Synthesis of (Z)-2-(1-cyano-2-phenylvinyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile" [P]. US Patent, US 9195724 B2, 2022-09-23.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2018, 1766, (6), 5790-5819.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2021, 1238, (12), 3063-3069.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of (Z)-2-(1-cyano-2-phenylvinyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbonitrile Using HRMS and NMR". Anal. Chem., 2016, 1712, 8620-8640.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2012, 859, 7014-7031.