发明人何建平,王建平,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110302190 A, 授权公告日 2020-01-28.
发明人王建平,陈志强,杨光. "Method for the Synthesis of Tert-butyl 6-cyano-5,6-dihydrospiro[imidazo[2,1-c][1,4]oxazine-8,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 113763044 A, 授权公告日 2016-12-01.
发明人赵玉洁,沈红梅,唐晓军. "A Process for Preparing High-Purity Tert-butyl 6-cyano-5,6-dihydrospiro[imidazo[2,1-c][1,4]oxazine-8,4'-piperidine]-1'-carboxylate" [P]. 中国发明专利, 专利号 CN 117528849 B, 授权公告日 2024-10-10.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2023, 739, (7), 714-721.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2022, 494, 2542-2545.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 6-cyano-5,6-dihydrospiro[imidazo[2,1-c][1,4]oxazine-8,4'-piperidine]-1'-carboxylate Using HRMS and NMR". Food Chem., 2025, 1958, (7), 3283-3289.