Lee S K, Yamamoto T, Anderson J P. "Method for the Synthesis of (1S,3S,6S)-4-oxo-5-azaspiro[2.4]Heptane-1,6-dicarboxylic acid" [P]. US Patent, US 11284296 B2, 2020-09-23.
Sørensen M, Björnsson E, Jørgensen K. "A Process for Preparing High-Purity (1S,3S,6S)-4-oxo-5-azaspiro[2.4]Heptane-1,6-dicarboxylic acid" [P]. European Patent, EP 3075154 A1, 2019-03-23.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2024, 334, (11), 9945-9960.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2023, 2063, (2), 9064-9092.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of (1S,3S,6S)-4-oxo-5-azaspiro[2.4]Heptane-1,6-dicarboxylic acid Using HRMS and NMR". J. Sep. Sci., 2022, 1241, 5943-5951.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2017, 1313, 6410-6439.