发明人刘建华,罗永刚,郭海燕. "Method for the Synthesis of 3-(Thiophen-2-yl)-5H-indeno[1,2-c]pyridazin-5-one" [P]. 中国发明专利, 专利号 CN 116848294 B, 授权公告日 2024-05-14.
发明人陈志强,张德明,杨光. "A Process for Preparing High-Purity 3-(Thiophen-2-yl)-5H-indeno[1,2-c]pyridazin-5-one" [P]. 中国发明专利, 专利号 CN 114891980 B, 授权公告日 2020-09-01.
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