发明人郭海燕,黄志刚,朱建伟. "Method for the Synthesis of 8-(4-Acetylpiperazin-1-yl)-3-methyl-7-propyl-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 110437694 B, 授权公告日 2022-06-03.
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