发明人黄志刚,徐明华,杨光. "Method for the Synthesis of 8-Bromo-3,7-dihydro-7-(2-methoxyethyl)-3-methyl-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 108856011 A, 授权公告日 2021-11-23.
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