发明人张德明,徐明华,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117695541 A, 授权公告日 2025-07-03.
发明人郑宇鹏,徐明华,黄志刚. "Method for the Synthesis of benzyl 2-({4-oxo-1H,4H,7H-pyrazolo[3,4-d]pyrimidin-6-yl}sulfanyl)acetate" [P]. 中国发明专利, 专利号 CN 114121581 B, 授权公告日 2019-06-17.
发明人沈红梅,李文辉,杨光. "A Process for Preparing High-Purity benzyl 2-({4-oxo-1H,4H,7H-pyrazolo[3,4-d]pyrimidin-6-yl}sulfanyl)acetate" [P]. 中国发明专利, 专利号 CN 117208590 B, 授权公告日 2019-03-10.
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