Kumar R, Fischer A B, Klinger H. "一种的合成方法" [P]. US Patent, US 11166658 B2, 2015-02-10.
发明人朱建伟,林芳,马晓峰. "Method for the Synthesis of Tert-butyl 4,6-difluoro-1-oxo-1,3-dihydrospiro[indene-2,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 108867513 B, 授权公告日 2020-01-15.
发明人韩伟,张德明,胡光. "A Process for Preparing High-Purity Tert-butyl 4,6-difluoro-1-oxo-1,3-dihydrospiro[indene-2,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 110863031 B, 授权公告日 2017-10-18.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2018, 1108, 3673-3702.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2018, 1632, (10), 2188-2209.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 4,6-difluoro-1-oxo-1,3-dihydrospiro[indene-2,4'-piperidine]-1'-carboxylate Using HRMS and NMR". J. Sep. Sci., 2015, 2156, (1), 5651-5656.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2022, 2257, 1082-1094.