发明人王建平,高志强,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109358419 A, 授权公告日 2022-11-23.
发明人罗永刚,林芳,唐晓军. "Method for the Synthesis of 7-(4-Chlorobenzyl)-8-(ethylthio)-3-methyl-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 117044406 B, 授权公告日 2020-08-01.
发明人高志强,胡光,徐明华. "A Process for Preparing High-Purity 7-(4-Chlorobenzyl)-8-(ethylthio)-3-methyl-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 114792016 B, 授权公告日 2017-06-04.
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