发明人何建平,郭海燕,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115492039 A, 授权公告日 2020-04-16.
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发明人王建平,陈志强,徐明华. "A Process for Preparing High-Purity 3-((o-Tolylamino)methylene)-1,5-dioxaspiro[5.5]undecane-2,4-dione" [P]. 中国发明专利, 专利号 CN 113141198 B, 授权公告日 2023-07-26.
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