Schröder R, Thompson G K, Kumar R. "一种的合成方法" [P]. US Patent, US 9625695 B2, 2019-06-03.
发明人李文辉,罗永刚,郑宇鹏. "Method for the Synthesis of tert-Butyl 3-oxo-1-oxa-6-azaspiro[3.3]heptane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 116400295 A, 授权公告日 2022-01-06.
O'Brien P Q, Roberts E F, Mueller T. "A Process for Preparing High-Purity tert-Butyl 3-oxo-1-oxa-6-azaspiro[3.3]heptane-6-carboxylate" [P]. US Patent, US 10487035 B2, 2024-07-17.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2010, 1384, 4811-4839.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2023, 281, (2), 7764-7774.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 3-oxo-1-oxa-6-azaspiro[3.3]heptane-6-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2023, 594, (1), 4387-4394.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2025, 1036, (7), 9153-9176.