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发明人徐明华,钱学锋,郑宇鹏. "Method for the Synthesis of 2-(2,2-Diphenylacetyl)-3-(propylidenehydrazineylidene)-2,3-dihydro-1H-inden-1-one" [P]. 中国发明专利, 专利号 CN 113752303 A, 授权公告日 2017-01-14.
发明人刘建华,张德明,徐明华. "A Process for Preparing High-Purity 2-(2,2-Diphenylacetyl)-3-(propylidenehydrazineylidene)-2,3-dihydro-1H-inden-1-one" [P]. 中国发明专利, 专利号 CN 116540484 B, 授权公告日 2022-02-17.
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