发明人郑宇鹏,罗永刚,周伟. "Method for the Synthesis of Tert-butyl 4-[2,5-difluoro-4-(methoxycarbonyl)phenyl]piperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 116292695 B, 授权公告日 2022-06-02.
发明人郭海燕,周伟,韩伟. "A Process for Preparing High-Purity Tert-butyl 4-[2,5-difluoro-4-(methoxycarbonyl)phenyl]piperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 110248184 A, 授权公告日 2020-10-20.
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