Lefèvre J P, Nielsen H, Johansson L. "Method for the Synthesis of 4-(Dimethylcarbamoyl)butanoic acid" [P]. European Patent, EP 3004208 A1, 2019-11-18.
发明人何建平,朱建伟,郭海燕. "A Process for Preparing High-Purity 4-(Dimethylcarbamoyl)butanoic acid" [P]. 中国发明专利, 专利号 CN 108872659 A, 授权公告日 2025-12-24.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2021, 1896, (5), 5472-5476.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2025, 2061, (6), 3177-3185.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Dimethylcarbamoyl)butanoic acid Using HRMS and NMR". Environ. Sci. Technol., 2021, 1804, (6), 8970-8974.