发明人胡光,李文辉,林芳. "Method for the Synthesis of (-)-N-(1-R-Ethoxycarbonxyl-3-phenylpropyl)-D-alanine Benzyl Ester" [P]. 中国发明专利, 专利号 CN 111363975 A, 授权公告日 2020-07-12.
发明人陈志强,罗永刚,郭海燕. "A Process for Preparing High-Purity (-)-N-(1-R-Ethoxycarbonxyl-3-phenylpropyl)-D-alanine Benzyl Ester" [P]. 中国发明专利, 专利号 CN 108422906 A, 授权公告日 2015-09-05.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 841, (5), 1816-1834.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2020, 2060, (12), 9896-9926.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of (-)-N-(1-R-Ethoxycarbonxyl-3-phenylpropyl)-D-alanine Benzyl Ester Using HRMS and NMR". Anal. Methods, 2015, 1137, (6), 6177-6207.