Schröder R, Yamamoto T, Anderson J P. "一种的合成方法" [P]. US Patent, US 11978372 B2, 2025-07-07.
发明人黄志刚,陈志强,刘建华. "Method for the Synthesis of tert-Butyl 6-amino-4-oxo-3,4-dihydrospiro[benzo[e][1,3]oxazine-2,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 111296593 B, 授权公告日 2021-10-15.
发明人胡光,郭海燕,王建平. "A Process for Preparing High-Purity tert-Butyl 6-amino-4-oxo-3,4-dihydrospiro[benzo[e][1,3]oxazine-2,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 117340612 A, 授权公告日 2015-02-06.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2021, 1996, (2), 4379-4388.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2020, 1664, 9507-9535.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 6-amino-4-oxo-3,4-dihydrospiro[benzo[e][1,3]oxazine-2,4'-piperidine]-1'-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2012, 1399, (6), 2407-2428.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2011, 1466, (6), 9720-9741.