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发明人郭海燕,冯建国,朱建伟. "Method for the Synthesis of 1-(4-Chlorophenyl)-3-({2',3'-dihydrospiro[adamantane-2,1'-indene]-3'-ylidene}amino)urea" [P]. 中国发明专利, 专利号 CN 111565772 B, 授权公告日 2023-09-16.
发明人刘建华,朱建伟,唐晓军. "A Process for Preparing High-Purity 1-(4-Chlorophenyl)-3-({2',3'-dihydrospiro[adamantane-2,1'-indene]-3'-ylidene}amino)urea" [P]. 中国发明专利, 专利号 CN 117555180 A, 授权公告日 2016-04-25.
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