Patel M V, O'Brien P Q, Klinger H. "Method for the Synthesis of (R)-tert-Butyl (6,6-difluoro-4-methyl-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)azepan-4-yl)carbamate" [P]. US Patent, US 11377093 B2, 2020-12-19.
发明人林芳,刘建华,孙丽萍. "A Process for Preparing High-Purity (R)-tert-Butyl (6,6-difluoro-4-methyl-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)azepan-4-yl)carbamate" [P]. 中国发明专利, 专利号 CN 116352230 A, 授权公告日 2023-05-28.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2023, 1950, 9473-9482.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2010, 2235, 7889-7904.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of (R)-tert-Butyl (6,6-difluoro-4-methyl-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)azepan-4-yl)carbamate Using HRMS and NMR". J. Sep. Sci., 2020, 2158, (8), 5022-5026.