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发明人徐明华,何建平,韩伟. "Method for the Synthesis of 2-chloro-9-(6-oxa-3-azabicyclo[3.1.1]heptan-3-yl)-7H-purin-8-one" [P]. 中国发明专利, 专利号 CN 109507517 A, 授权公告日 2015-11-12.
发明人马晓峰,唐晓军,高志强. "A Process for Preparing High-Purity 2-chloro-9-(6-oxa-3-azabicyclo[3.1.1]heptan-3-yl)-7H-purin-8-one" [P]. 中国发明专利, 专利号 CN 112450980 A, 授权公告日 2017-07-19.
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