发明人王建平,张德明,马晓峰. "Method for the Synthesis of tert-butyl (4S)-4-(tert-butoxycarbonylamino)-3-chloro-2-methyl-spiro[4,6-dihydropyrrolo[1,2-b]pyrazole-5,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 111386182 B, 授权公告日 2020-11-16.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2015, 1619, (1), 4484-4509.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2015, 2362, (5), 2964-2974.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of tert-butyl (4S)-4-(tert-butoxycarbonylamino)-3-chloro-2-methyl-spiro[4,6-dihydropyrrolo[1,2-b]pyrazole-5,4'-piperidine]-1'-carboxylate Using HRMS and NMR". Food Chem., 2025, 91, (5), 2645-2650.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2018, 259, 2990-3010.