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发明人赵玉洁,郭海燕,冯建国. "Method for the Synthesis of 8-Bromo-7-(3-chloro-2-hydroxypropyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 113695899 A, 授权公告日 2018-01-20.
发明人钱学锋,何建平,沈红梅. "A Process for Preparing High-Purity 8-Bromo-7-(3-chloro-2-hydroxypropyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 112376834 B, 授权公告日 2022-03-07.
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