Thompson G K, Lee S K, Chen K W. "一种的合成方法" [P]. US Patent, US 10545017 B2, 2020-11-08.
发明人周伟,何建平,沈红梅. "Method for the Synthesis of Tert-butyl 6'-bromo-1'-oxo-1',3'-dihydrospiro[azetidine-3,2'-indene]-1-carboxylate" [P]. 中国发明专利, 专利号 CN 108169901 A, 授权公告日 2016-10-27.
发明人冯建国,林芳,韩伟. "A Process for Preparing High-Purity Tert-butyl 6'-bromo-1'-oxo-1',3'-dihydrospiro[azetidine-3,2'-indene]-1-carboxylate" [P]. 中国发明专利, 专利号 CN 108408913 B, 授权公告日 2019-06-01.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2022, 1296, (9), 2727-2743.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 1467, (8), 1335-1345.