发明人郭海燕,杨光,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109081724 A, 授权公告日 2017-07-17.
发明人何建平,陈志强,沈红梅. "Method for the Synthesis of (S)-4-(3-Bromo-2-cyanophenyl)-1-(tert-butoxy-carbonyl)piperazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116935650 B, 授权公告日 2016-11-03.
发明人李文辉,徐明华,钱学锋. "A Process for Preparing High-Purity (S)-4-(3-Bromo-2-cyanophenyl)-1-(tert-butoxy-carbonyl)piperazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112814471 B, 授权公告日 2019-12-27.
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