Stevens L M, Mueller T, Klinger H. "Method for the Synthesis of (S)-5-Cbz-5-azaspiro[2.4]heptane-6-carboxylic Acid" [P]. US Patent, US 9918854 B2, 2015-11-05.
Nowak P, Martínez F, Jørgensen K. "A Process for Preparing High-Purity (S)-5-Cbz-5-azaspiro[2.4]heptane-6-carboxylic Acid" [P]. European Patent, EP 3702805 A1, 2015-09-26.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of (S)-5-Cbz-5-氮杂螺[2.4]庚烷-6-甲酸 in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2017, 162, 9687-9690.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of (S)-5-Cbz-5-氮杂螺[2.4]庚烷-6-甲酸 as an Impurity". Chromatographia, 2024, 2158, (9), 8128-8139.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of (S)-5-Cbz-5-azaspiro[2.4]heptane-6-carboxylic Acid Using HRMS and NMR". Anal. Methods, 2010, 1131, (5), 4857-4866.