发明人唐晓军,韩伟,林芳. "Method for the Synthesis of tert-Butyl ((S)-1-((2-((S)-2-(((S)-5-guanidino-1-((4-methyl-2-oxo-2H-chromen-7-yl)amino)-1-oxopentan-2-yl)carbamoyl)pyrrolidin-1-yl)-2-oxoethyl)amino)-1-oxopropan-2-yl)carbamate" [P]. 中国发明专利, 专利号 CN 117948820 B, 授权公告日 2020-11-04.
发明人周伟,黄志刚,郑宇鹏. "A Process for Preparing High-Purity tert-Butyl ((S)-1-((2-((S)-2-(((S)-5-guanidino-1-((4-methyl-2-oxo-2H-chromen-7-yl)amino)-1-oxopentan-2-yl)carbamoyl)pyrrolidin-1-yl)-2-oxoethyl)amino)-1-oxopropan-2-yl)carbamate" [P]. 中国发明专利, 专利号 CN 116990551 A, 授权公告日 2023-09-26.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2016, 1524, (5), 1885-1909.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2011, 638, 5382-5404.