Johnson M A, Lee S K, Chen K W. "Method for the Synthesis of N-(((9H-fluoren-9-yl)methoxy)carbonyl)-O-((2R,3S,4R,5R,6S)-3,4,5-triacetoxy-6-methyltetrahydro-2H-pyran-2-yl)-L-threonine" [P]. US Patent, US 11107060 B2, 2022-12-28.
Johnson M A, Schröder R, Kumar R. "A Process for Preparing High-Purity N-(((9H-fluoren-9-yl)methoxy)carbonyl)-O-((2R,3S,4R,5R,6S)-3,4,5-triacetoxy-6-methyltetrahydro-2H-pyran-2-yl)-L-threonine" [P]. US Patent, US 10235549 B2, 2025-10-23.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2017, 605, (9), 2032-2045.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2020, 1692, 2160-2190.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of N-(((9H-fluoren-9-yl)methoxy)carbonyl)-O-((2R,3S,4R,5R,6S)-3,4,5-triacetoxy-6-methyltetrahydro-2H-pyran-2-yl)-L-threonine Using HRMS and NMR". Anal. Chim. Acta, 2023, 1201, 616-631.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2024, 1840, (2), 7237-7264.