Davis P L, Stevens L M, Roberts E F. "一种的合成方法" [P]. US Patent, US 9550115 B2, 2018-03-25.
发明人刘建华,徐明华,黄志刚. "Method for the Synthesis of 4-((tert-Butoxycarbonyl)amino)-3-methylisoxazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114301515 B, 授权公告日 2024-03-14.
Brown S R, Stevens L M, Fischer A B. "A Process for Preparing High-Purity 4-((tert-Butoxycarbonyl)amino)-3-methylisoxazole-5-carboxylic acid" [P]. US Patent, US 10958268 B2, 2020-11-03.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2010, 952, 622-634.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2016, 2167, 1846-1850.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-((tert-Butoxycarbonyl)amino)-3-methylisoxazole-5-carboxylic acid Using HRMS and NMR". J. Sep. Sci., 2012, 766, 4369-4375.