Johansson L, Schröder R, Kowalski A. "Method for the Synthesis of tert-Butyl 1,2-dihydrospiro[indole-3,4'-piperidine]-1-carboxylate" [P]. European Patent, EP 3160443 A1, 2021-11-26.
Sørensen M, Johansson L, Lefèvre J P. "A Process for Preparing High-Purity tert-Butyl 1,2-dihydrospiro[indole-3,4'-piperidine]-1-carboxylate" [P]. European Patent, EP 3320548 A1, 2021-03-17.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2011, 1681, (7), 8568-8573.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2012, 1428, 7367-7388.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 1,2-dihydrospiro[indole-3,4'-piperidine]-1-carboxylate Using HRMS and NMR". Talanta, 2023, 470, 8887-8917.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2015, 225, 1948-1953.