发明人罗永刚,杨光,马晓峰. "Method for the Synthesis of 4-(tert-butoxy)-2-cyano-2-methyl-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 117588464 A, 授权公告日 2023-06-07.
发明人高志强,何建平,冯建国. "A Process for Preparing High-Purity 4-(tert-butoxy)-2-cyano-2-methyl-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 117362230 A, 授权公告日 2025-08-03.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of 4-(tert-butoxy)-2-cyano-2-methyl-4-oxobutanoic acid in Pharmaceutical Formulations". J. Agric. Food Chem., 2025, 633, 8851-8881.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-(tert-butoxy)-2-cyano-2-methyl-4-oxobutanoic acid as an Impurity". Chemosphere, 2012, 2245, (3), 6239-6263.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-(tert-butoxy)-2-cyano-2-methyl-4-oxobutanoic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2014, 887, (6), 3888-3893.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate 4-(tert-butoxy)-2-cyano-2-methyl-4-oxobutanoic acid Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2014, 1840, (7), 1290-1317.