发明人徐明华,沈红梅,黄志刚. "Method for the Synthesis of Tert-butyl 6-(4-bromophenyl)-2,6-diazaspiro[3.3]Heptane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 114146552 A, 授权公告日 2015-11-13.
发明人高志强,朱建伟,林芳. "A Process for Preparing High-Purity Tert-butyl 6-(4-bromophenyl)-2,6-diazaspiro[3.3]Heptane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108006038 B, 授权公告日 2017-01-19.
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