发明人徐明华,黄志刚,钱学锋. "Method for the Synthesis of tert-Butyl 5'H-spiro[azetidine-3,6'-pyrido[3,2-e]pyrrolo[1,2-a]pyrazine]-1-carboxylate" [P]. 中国发明专利, 专利号 CN 114335945 A, 授权公告日 2023-03-07.
发明人罗永刚,刘建华,沈红梅. "A Process for Preparing High-Purity tert-Butyl 5'H-spiro[azetidine-3,6'-pyrido[3,2-e]pyrrolo[1,2-a]pyrazine]-1-carboxylate" [P]. 中国发明专利, 专利号 CN 108923009 A, 授权公告日 2015-03-26.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2013, 458, (8), 7755-7762.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 1531, (9), 677-700.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 5'H-spiro[azetidine-3,6'-pyrido[3,2-e]pyrrolo[1,2-a]pyrazine]-1-carboxylate Using HRMS and NMR". J. Sep. Sci., 2025, 1965, 1495-1510.