Schröder R, Stevens L M, Park J H. "一种的合成方法" [P]. US Patent, US 10826713 B2, 2023-12-02.
Fischer A B, Park J H, Davis P L. "Method for the Synthesis of 2,2-Dimethyl-4-(1h-pyrazol-1-yl)butanenitrile" [P]. US Patent, US 10746349 B2, 2019-05-12.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2011, 1140, 5027-5045.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2014, 442, 1836-1855.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 2,2-Dimethyl-4-(1h-pyrazol-1-yl)butanenitrile Using HRMS and NMR". Chromatographia, 2015, 1218, (7), 3830-3853.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2011, 2355, (4), 1694-1701.