发明人冯建国,孙丽萍,罗永刚. "Method for the Synthesis of 1-(2-(4-Ethyl-6-oxopyrimidin-1(6H)-yl)ethyl)-3-(thiophen-2-yl)urea" [P]. 中国发明专利, 专利号 CN 108677376 A, 授权公告日 2025-05-04.
发明人李文辉,周伟,杨光. "A Process for Preparing High-Purity 1-(2-(4-Ethyl-6-oxopyrimidin-1(6H)-yl)ethyl)-3-(thiophen-2-yl)urea" [P]. 中国发明专利, 专利号 CN 117437798 A, 授权公告日 2021-01-07.
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