发明人陈志强,冯建国,赵玉洁. "Method for the Synthesis of 4-chloro-1H-pyrazolo[3,4-d]pyrimidine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 116969935 A, 授权公告日 2021-11-28.
发明人黄志刚,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity 4-chloro-1H-pyrazolo[3,4-d]pyrimidine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 113577057 B, 授权公告日 2024-04-01.
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