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发明人何建平,周伟,张德明. "Method for the Synthesis of (4Z)-4-[(1H-Indol-3-yl)methylidene]-1,3-diphenyl-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 112335279 B, 授权公告日 2023-04-09.
发明人孙丽萍,高志强,冯建国. "A Process for Preparing High-Purity (4Z)-4-[(1H-Indol-3-yl)methylidene]-1,3-diphenyl-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 109329865 B, 授权公告日 2017-05-10.
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