Yamamoto T, Klinger H, Schröder R. "一种的合成方法" [P]. US Patent, US 9937048 B2, 2017-04-07.
Patel M V, Park J H, Schröder R. "Method for the Synthesis of 4-(4-Amino-3-methyl-1H-pyrazol-1-yl)butanoic acid" [P]. US Patent, US 9398457 B2, 2022-11-19.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2010, 1169, 3914-3929.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2016, 2128, 8174-8183.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 4-(4-Amino-3-methyl-1H-pyrazol-1-yl)butanoic acid Using HRMS and NMR". Anal. Chim. Acta, 2017, 403, (10), 1935-1941.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2024, 2060, 8790-8796.