Johnson M A, Stevens L M, Park J H. "Method for the Synthesis of (R)-(9H-Fluoren-9-yl)methyl (1-chloro-4-methyl-1-oxopentan-2-yl)carbamate" [P]. US Patent, US 11180460 B2, 2023-08-05.
Klinger H, Davis P L, Chen K W. "A Process for Preparing High-Purity (R)-(9H-Fluoren-9-yl)methyl (1-chloro-4-methyl-1-oxopentan-2-yl)carbamate" [P]. US Patent, US 11944695 B2, 2021-12-10.
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". Anal. Chem., 2022, 1245, (5), 707-737.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2010, 1622, 5207-5227.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of (R)-(9H-Fluoren-9-yl)methyl (1-chloro-4-methyl-1-oxopentan-2-yl)carbamate Using HRMS and NMR". Biomed. Chromatogr., 2011, 156, 2141-2156.