发明人马晓峰,李文辉,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111378727 A, 授权公告日 2020-05-04.
发明人郭海燕,马晓峰,周伟. "Method for the Synthesis of tert-Butyl 6-chloro-5-methyl-3-oxo-2,3-dihydrospiro[indene-1,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 111197664 B, 授权公告日 2025-07-25.
发明人陈志强,钱学锋,冯建国. "A Process for Preparing High-Purity tert-Butyl 6-chloro-5-methyl-3-oxo-2,3-dihydrospiro[indene-1,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 117810442 A, 授权公告日 2022-06-09.
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". Biomed. Chromatogr., 2022, 1357, (12), 445-460.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2023, 874, (4), 6056-6081.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 6-chloro-5-methyl-3-oxo-2,3-dihydrospiro[indene-1,4'-piperidine]-1'-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2012, 1946, 978-993.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2012, 260, 1735-1749.