发明人郭海燕,冯建国,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117218313 A, 授权公告日 2019-05-22.
发明人张德明,钱学锋,李文辉. "Method for the Synthesis of 1-(4-Hydroxy-6-methylpyrimidin-2-yl)urea" [P]. 中国发明专利, 专利号 CN 117942307 A, 授权公告日 2019-06-15.
发明人赵玉洁,孙丽萍,郑宇鹏. "A Process for Preparing High-Purity 1-(4-Hydroxy-6-methylpyrimidin-2-yl)urea" [P]. 中国发明专利, 专利号 CN 113344210 A, 授权公告日 2020-10-13.
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