发明人罗永刚,韩伟,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112228055 A, 授权公告日 2017-02-28.
发明人张德明,林芳,李文辉. "Method for the Synthesis of 7-Chloro-2-(3-chloropropyl)-2H-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 112393267 A, 授权公告日 2019-01-13.
发明人赵玉洁,郭海燕,王建平. "A Process for Preparing High-Purity 7-Chloro-2-(3-chloropropyl)-2H-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 109363308 B, 授权公告日 2020-08-16.
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