Chen K W, Johnson M A, Williams B T. "Method for the Synthesis of 2-Amino-4-(4-chloro-1h-pyrazol-1-yl)-2-methylbutanoic acid" [P]. US Patent, US 10034608 B2, 2017-01-04.
发明人林芳,冯建国,马晓峰. "A Process for Preparing High-Purity 2-Amino-4-(4-chloro-1h-pyrazol-1-yl)-2-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 115973350 B, 授权公告日 2015-09-10.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2012, 659, (4), 3480-3502.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2024, 1853, 9248-9264.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-4-(4-chloro-1h-pyrazol-1-yl)-2-methylbutanoic acid Using HRMS and NMR". Talanta, 2015, 379, (9), 4963-4991.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2015, 2025, 5768-5790.