Stevens L M, Chen K W, Anderson J P. "一种tert-butyl 6-bromo-3,4-dihydrospiro[1-benzopyran-2,4’-piperidine]-1’-carboxylate的合成方法" [P]. US Patent, US 10197336 B2, 2025-06-06.
发明人郑宇鹏,罗永刚,冯建国. "Method for the Synthesis of tert-butyl 6-bromo-3,4-dihydrospiro[1-benzopyran-2,4’-piperidine]-1’-carboxylate" [P]. 中国发明专利, 专利号 CN 114015827 A, 授权公告日 2022-01-24.
Stevens L M, Park J H, Chen K W. "A Process for Preparing High-Purity tert-butyl 6-bromo-3,4-dihydrospiro[1-benzopyran-2,4’-piperidine]-1’-carboxylate" [P]. US Patent, US 9192687 B2, 2017-10-23.
参考文献 Literature
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