Johnson M A, Mueller T, Park J H. "Method for the Synthesis of (S)-1-(9H-Fluoren-9-yl)-5-isopropyl-3,6,9-trioxo-2-oxa-4,7,10-triazadodecan-12-oic acid" [P]. US Patent, US 11864357 B2, 2017-12-26.
发明人高志强,刘建华,李文辉. "A Process for Preparing High-Purity (S)-1-(9H-Fluoren-9-yl)-5-isopropyl-3,6,9-trioxo-2-oxa-4,7,10-triazadodecan-12-oic acid" [P]. 中国发明专利, 专利号 CN 115839463 A, 授权公告日 2022-03-28.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2015, 247, 5838-5856.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2025, 1983, 4077-4097.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of (S)-1-(9H-Fluoren-9-yl)-5-isopropyl-3,6,9-trioxo-2-oxa-4,7,10-triazadodecan-12-oic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 2460, (1), 5745-5764.