发明人何建平,郭海燕,陈志强. "Method for the Synthesis of Tert-butyl (S)-4-(6-amino-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-3-methylpiperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 110497657 A, 授权公告日 2022-09-19.
发明人杨光,冯建国,郭海燕. "A Process for Preparing High-Purity Tert-butyl (S)-4-(6-amino-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-3-methylpiperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 116247339 B, 授权公告日 2021-06-03.
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