发明人沈红梅,韩伟,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117013240 A, 授权公告日 2023-11-10.
发明人何建平,刘建华,陈志强. "Method for the Synthesis of 7-Isobutyl-1,3-dimethyl-8-((4-methylpiperidin-1-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 110483283 B, 授权公告日 2015-02-26.
发明人郭海燕,沈红梅,高志强. "A Process for Preparing High-Purity 7-Isobutyl-1,3-dimethyl-8-((4-methylpiperidin-1-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 114397766 B, 授权公告日 2023-06-13.
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