发明人罗永刚,何建平,高志强. "Method for the Synthesis of 5-Chloro-7-methoxy-1-(oxetan-3-yl)-1H-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 113160337 A, 授权公告日 2017-11-01.
发明人张德明,罗永刚,韩伟. "A Process for Preparing High-Purity 5-Chloro-7-methoxy-1-(oxetan-3-yl)-1H-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 108009144 B, 授权公告日 2021-06-28.
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