Lefèvre J P, Nowak P, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3262612 A1, 2022-11-15.
Björnsson E, Lefèvre J P, Martínez F. "Method for the Synthesis of tert-Butyl 7-benzyl-2,7-diazaspiro[3.5]nonane-2-carboxylate" [P]. European Patent, EP 3795716 A1, 2015-02-21.
Jørgensen K, Nielsen H, Björnsson E. "A Process for Preparing High-Purity tert-Butyl 7-benzyl-2,7-diazaspiro[3.5]nonane-2-carboxylate" [P]. European Patent, EP 3336916 A1, 2025-09-12.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2023, 504, (12), 6292-6315.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2015, 1277, (8), 4329-4355.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 7-benzyl-2,7-diazaspiro[3.5]nonane-2-carboxylate Using HRMS and NMR". Talanta, 2015, 109, 8881-8893.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2019, 142, 1585-1608.