发明人王建平,钱学锋,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111652862 A, 授权公告日 2025-01-08.
Stevens L M, Yamamoto T, Schröder R. "Method for the Synthesis of 6-(tert-Butoxycarbonyl)-8-fluoro-2-oxa-6-azaspiro[3.4]octane-8-carboxylic acid" [P]. US Patent, US 9387526 B2, 2022-05-26.
Kumar R, Yamamoto T, Schröder R. "A Process for Preparing High-Purity 6-(tert-Butoxycarbonyl)-8-fluoro-2-oxa-6-azaspiro[3.4]octane-8-carboxylic acid" [P]. US Patent, US 11909440 B2, 2016-11-21.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2019, 1555, (2), 8697-8715.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2024, 1980, (1), 7442-7463.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 6-(tert-Butoxycarbonyl)-8-fluoro-2-oxa-6-azaspiro[3.4]octane-8-carboxylic acid Using HRMS and NMR". Food Chem., 2022, 2082, (1), 1323-1330.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2012, 388, (8), 5059-5067.