发明人钱学锋,张德明,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113629644 A, 授权公告日 2020-11-15.
发明人黄志刚,高志强,马晓峰. "Method for the Synthesis of Butanoic acid, 4-[[(1,1-dimethylethoxy)carbonyl]amino]-, 2,5-dioxo-1-pyrrolidinyl ester" [P]. 中国发明专利, 专利号 CN 115757220 B, 授权公告日 2021-02-01.
发明人陈志强,林芳,郑宇鹏. "A Process for Preparing High-Purity Butanoic acid, 4-[[(1,1-dimethylethoxy)carbonyl]amino]-, 2,5-dioxo-1-pyrrolidinyl ester" [P]. 中国发明专利, 专利号 CN 112897777 A, 授权公告日 2021-12-25.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2011, 1503, (3), 3355-3374.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2015, 137, 5609-5628.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Butanoic acid, 4-[[(1,1-dimethylethoxy)carbonyl]amino]-, 2,5-dioxo-1-pyrrolidinyl ester Using HRMS and NMR". Anal. Chim. Acta, 2013, 1532, (10), 1779-1806.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2014, 1185, (12), 1330-1354.