Martínez F, Nielsen H, Johansson L. "一种的合成方法" [P]. European Patent, EP 3556800 A1, 2025-04-24.
Klinger H, Williams B T, Patel M V. "Method for the Synthesis of 2-methyl-2-azaspiro[3.3]heptane-6-carboxylic acid" [P]. US Patent, US 10988716 B2, 2023-01-02.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2022, 1702, (12), 9649-9666.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2025, 1552, (5), 759-787.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 2-methyl-2-azaspiro[3.3]heptane-6-carboxylic acid Using HRMS and NMR". Anal. Chem., 2019, 1559, (12), 6259-6275.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2012, 1986, (9), 1722-1727.