发明人郑宇鹏,高志强,罗永刚. "Method for the Synthesis of 1H-Pyrazolo[4,3-d]pyrimidin-7(7aH)-one" [P]. 中国发明专利, 专利号 CN 112352375 B, 授权公告日 2021-07-12.
发明人钱学锋,郑宇鹏,赵玉洁. "A Process for Preparing High-Purity 1H-Pyrazolo[4,3-d]pyrimidin-7(7aH)-one" [P]. 中国发明专利, 专利号 CN 112339504 B, 授权公告日 2024-10-25.
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