发明人徐明华,孙丽萍,李文辉. "一种4-(叔丁氧基羰基)-1-(5-氟嘧啶-2-基)哌嗪-2-羧酸的合成方法" [P]. 中国发明专利, 专利号 CN 108611585 A, 授权公告日 2017-03-01.
发明人黄志刚,张德明,何建平. "Method for the Synthesis of 4-(tert-Butoxycarbonyl)-1-(5-fluoropyrimidin-2-yl)piperazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113060873 B, 授权公告日 2015-02-18.
发明人唐晓军,胡光,郑宇鹏. "A Process for Preparing High-Purity 4-(tert-Butoxycarbonyl)-1-(5-fluoropyrimidin-2-yl)piperazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113995503 B, 授权公告日 2016-12-27.
参考文献 Literature
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