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发明人何建平,林芳,朱建伟. "A Process for Preparing High-Purity 8-(Butylthio)-1,3-dimethyl-7-(2-methylallyl)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 113105491 B, 授权公告日 2023-05-19.
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