O'Brien P Q, Williams B T, Kumar R. "Method for the Synthesis of 4-(2-Bromobenzoyl)-8-tert-Butyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. US Patent, US 11034708 B2, 2021-07-09.
发明人马晓峰,杨光,周伟. "A Process for Preparing High-Purity 4-(2-Bromobenzoyl)-8-tert-Butyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112596662 A, 授权公告日 2019-03-05.
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". J. Chromatogr. A, 2012, 274, (4), 8943-8964.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2018, 98, (12), 3470-3483.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Bromobenzoyl)-8-tert-Butyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid Using HRMS and NMR". Chemosphere, 2022, 1245, (8), 8049-8059.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2013, 1392, 8263-8277.