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发明人赵玉洁,郭海燕,钱学锋. "Method for the Synthesis of 3-Bromo-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one" [P]. 中国发明专利, 专利号 CN 109528800 A, 授权公告日 2022-11-19.
发明人王建平,沈红梅,陈志强. "A Process for Preparing High-Purity 3-Bromo-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one" [P]. 中国发明专利, 专利号 CN 110268770 A, 授权公告日 2022-06-06.
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