发明人沈红梅,郑宇鹏,周伟. "Method for the Synthesis of 1-[2,6-difluoro-4-[2-(4-piperidyl)ethynyl]phenyl]hexahydropyrimidine-2,4-dione" [P]. 中国发明专利, 专利号 CN 109924417 A, 授权公告日 2019-10-07.
发明人杨光,黄志刚,韩伟. "A Process for Preparing High-Purity 1-[2,6-difluoro-4-[2-(4-piperidyl)ethynyl]phenyl]hexahydropyrimidine-2,4-dione" [P]. 中国发明专利, 专利号 CN 113245131 B, 授权公告日 2019-10-09.
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