发明人刘建华,王建平,赵玉洁. "Method for the Synthesis of (R)-2-Amino-4-(methylamino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 113301688 A, 授权公告日 2019-07-07.
发明人林芳,张德明,赵玉洁. "A Process for Preparing High-Purity (R)-2-Amino-4-(methylamino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 110874549 B, 授权公告日 2017-06-23.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of (R)-4-N-甲基天冬酰胺 in Pharmaceutical Formulations". Chromatographia, 2018, 1889, (9), 2411-2424.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of (R)-4-N-甲基天冬酰胺 as an Impurity". J. Nat. Prod., 2019, 2016, (1), 6143-6159.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of (R)-2-Amino-4-(methylamino)-4-oxobutanoic acid Using HRMS and NMR". Environ. Sci. Technol., 2011, 2205, (2), 9438-9465.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate (R)-4-N-甲基天冬酰胺 Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2010, 1076, 8286-8313.