发明人朱建伟,徐明华,孙丽萍. "Method for the Synthesis of 1,1'-(9H-Fluorene-2,5-diyl)diethanone" [P]. 中国发明专利, 专利号 CN 117285380 B, 授权公告日 2019-10-16.
发明人唐晓军,高志强,李文辉. "A Process for Preparing High-Purity 1,1'-(9H-Fluorene-2,5-diyl)diethanone" [P]. 中国发明专利, 专利号 CN 112492987 A, 授权公告日 2020-02-02.
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