O'Brien P Q, Mueller T, Yamamoto T. "一种的合成方法" [P]. US Patent, US 11242308 B2, 2018-08-01.
发明人胡光,张德明,马晓峰. "Method for the Synthesis of (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-((5,9-dioxo-4,10-dioxa-6,8-diazatrideca-1,12-dien-7-ylidene)amino)pentanoic acid" [P]. 中国发明专利, 专利号 CN 116304424 B, 授权公告日 2025-04-24.
发明人徐明华,林芳,郭海燕. "A Process for Preparing High-Purity (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-((5,9-dioxo-4,10-dioxa-6,8-diazatrideca-1,12-dien-7-ylidene)amino)pentanoic acid" [P]. 中国发明专利, 专利号 CN 114707964 B, 授权公告日 2021-09-24.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2022, 638, 8151-8169.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2019, 1895, (11), 4612-4638.