Williams B T, Hughes D C, Roberts E F. "Method for the Synthesis of Potassium (R)-2-((4-ethoxy-4-oxobut-2-en-2-yl)amino)-2-phenylacetate" [P]. US Patent, US 9671253 B2, 2015-06-22.
Lefèvre J P, Björnsson E, Jørgensen K. "A Process for Preparing High-Purity Potassium (R)-2-((4-ethoxy-4-oxobut-2-en-2-yl)amino)-2-phenylacetate" [P]. European Patent, EP 3972066 A1, 2024-12-08.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 左旋苯甘氨酸乙基邓钾盐 in Pharmaceutical Formulations". Anal. Chem., 2016, 1591, (1), 7205-7231.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 左旋苯甘氨酸乙基邓钾盐 as an Impurity". Talanta, 2021, 1203, 8171-8190.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Potassium (R)-2-((4-ethoxy-4-oxobut-2-en-2-yl)amino)-2-phenylacetate Using HRMS and NMR". Molecules, 2018, 2367, 854-858.