发明人冯建国,郑宇鹏,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109639481 A, 授权公告日 2023-02-01.
发明人赵玉洁,冯建国,郑宇鹏. "Method for the Synthesis of (S)-7,7-difluorohexahydropyrrolo[1,2-a]pyrazin-1(2H)-one" [P]. 中国发明专利, 专利号 CN 111099004 A, 授权公告日 2020-11-27.
发明人罗永刚,郑宇鹏,何建平. "A Process for Preparing High-Purity (S)-7,7-difluorohexahydropyrrolo[1,2-a]pyrazin-1(2H)-one" [P]. 中国发明专利, 专利号 CN 115859481 A, 授权公告日 2018-08-13.
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