Kowalski A, Jørgensen K, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3555630 A1, 2019-11-08.
Mueller T, Johnson M A, Stevens L M. "Method for the Synthesis of (R)-4-(tert-butoxy)-2-((1-methylcyclopropyl)methyl)-4-oxobutanoic acid" [P]. US Patent, US 9307899 B2, 2024-02-23.
Nowak P, Martínez F, Lefèvre J P. "A Process for Preparing High-Purity (R)-4-(tert-butoxy)-2-((1-methylcyclopropyl)methyl)-4-oxobutanoic acid" [P]. European Patent, EP 3819997 A1, 2024-10-19.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2025, 305, 8290-8300.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2025, 2060, 2941-2944.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of (R)-4-(tert-butoxy)-2-((1-methylcyclopropyl)methyl)-4-oxobutanoic acid Using HRMS and NMR". J. Chromatogr. A, 2011, 1210, 9638-9646.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2016, 320, (10), 6820-6834.