Lefèvre J P, Rossi M, Johansson L. "Method for the Synthesis of 5-(tert-Butyl) 7-methyl 2-oxa-5-azabicyclo[2.2.1]heptane-5,7-dicarboxylate" [P]. European Patent, EP 3450813 A1, 2015-11-04.
Hughes D C, Schröder R, Brown S R. "A Process for Preparing High-Purity 5-(tert-Butyl) 7-methyl 2-oxa-5-azabicyclo[2.2.1]heptane-5,7-dicarboxylate" [P]. US Patent, US 11777574 B2, 2023-02-05.
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". Rapid Commun. Mass Spectrom., 2020, 422, (2), 5084-5110.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2019, 2151, (12), 8112-8117.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 5-(tert-Butyl) 7-methyl 2-oxa-5-azabicyclo[2.2.1]heptane-5,7-dicarboxylate Using HRMS and NMR". Food Chem., 2023, 1748, 4691-4715.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2022, 135, 2750-2759.