发明人孙丽萍,唐晓军,高志强. "Method for the Synthesis of (S)-3-((tert-butoxycarbonyl)amino)-2-(2,4-difluorobenzyl)propanoic acid" [P]. 中国发明专利, 专利号 CN 112024396 A, 授权公告日 2019-01-08.
发明人王建平,罗永刚,林芳. "A Process for Preparing High-Purity (S)-3-((tert-butoxycarbonyl)amino)-2-(2,4-difluorobenzyl)propanoic acid" [P]. 中国发明专利, 专利号 CN 117126067 A, 授权公告日 2018-11-13.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2014, 1324, (5), 523-544.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2020, 436, 705-716.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of (S)-3-((tert-butoxycarbonyl)amino)-2-(2,4-difluorobenzyl)propanoic acid Using HRMS and NMR". Anal. Chem., 2022, 296, 9820-9827.