Hughes D C, Mueller T, Anderson J P. "一种的合成方法" [P]. US Patent, US 11941589 B2, 2017-08-10.
发明人罗永刚,郭海燕,赵玉洁. "Method for the Synthesis of (S)-2-(tert-butoxycarbonyl)-3-methyl-2-((methylamino)methyl)butanoic acid" [P]. 中国发明专利, 专利号 CN 115401885 B, 授权公告日 2025-02-03.
Park J H, Hughes D C, Anderson J P. "A Process for Preparing High-Purity (S)-2-(tert-butoxycarbonyl)-3-methyl-2-((methylamino)methyl)butanoic acid" [P]. US Patent, US 9673469 B2, 2020-09-12.
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". Rapid Commun. Mass Spectrom., 2019, 2139, (8), 812-842.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2017, 592, 6218-6238.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of (S)-2-(tert-butoxycarbonyl)-3-methyl-2-((methylamino)methyl)butanoic acid Using HRMS and NMR". Environ. Sci. Technol., 2018, 2457, (9), 1526-1540.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2022, 2310, 5067-5092.