Hughes D C, Mueller T, Davis P L. "一种的合成方法" [P]. US Patent, US 9438781 B2, 2018-03-28.
Stevens L M, Hughes D C, O'Brien P Q. "Method for the Synthesis of tert-Butyl 2-oxa-6-azaspiro[3.4]octane-6-carboxylate" [P]. US Patent, US 11963642 B2, 2015-04-13.
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. Sep. Sci., 2011, 953, (2), 8135-8162.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2021, 852, (3), 3942-3956.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 2-oxa-6-azaspiro[3.4]octane-6-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2013, 2230, (5), 1956-1985.