发明人马晓峰,高志强,韩伟. "Method for the Synthesis of (S)-1,4-Dithia-7-azaspiro[4.4]nonane-8-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116935618 B, 授权公告日 2022-04-18.
Sørensen M, Rossi M, Björnsson E. "A Process for Preparing High-Purity (S)-1,4-Dithia-7-azaspiro[4.4]nonane-8-carboxylic acid" [P]. European Patent, EP 3906694 A1, 2024-05-24.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2021, 2166, (8), 3980-4008.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2024, 2473, 7154-7167.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of (S)-1,4-Dithia-7-azaspiro[4.4]nonane-8-carboxylic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2018, 2341, (12), 2722-2743.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2017, 315, (5), 9173-9177.