发明人赵玉洁,唐晓军,何建平. "Method for the Synthesis of 7-(Pyrimidin-5-yl)-1,7-diazaspiro[4.4]nonane" [P]. 中国发明专利, 专利号 CN 114842747 B, 授权公告日 2016-02-07.
发明人赵玉洁,杨光,徐明华. "A Process for Preparing High-Purity 7-(Pyrimidin-5-yl)-1,7-diazaspiro[4.4]nonane" [P]. 中国发明专利, 专利号 CN 109358418 A, 授权公告日 2024-09-13.
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