发明人韩伟,胡光,赵玉洁. "Method for the Synthesis of 7-Chloro-2-methyl-2H-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 110618730 A, 授权公告日 2015-07-06.
发明人杨光,高志强,郑宇鹏. "A Process for Preparing High-Purity 7-Chloro-2-methyl-2H-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 113260340 B, 授权公告日 2016-12-17.
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