发明人钱学锋,刘建华,林芳. "Method for the Synthesis of 2-(((2-(Piperazin-1-yl)ethyl)amino)methylene)-5-(thiophen-2-yl)cyclohexane-1,3-dione" [P]. 中国发明专利, 专利号 CN 117015099 A, 授权公告日 2023-01-25.
发明人唐晓军,孙丽萍,张德明. "A Process for Preparing High-Purity 2-(((2-(Piperazin-1-yl)ethyl)amino)methylene)-5-(thiophen-2-yl)cyclohexane-1,3-dione" [P]. 中国发明专利, 专利号 CN 115819615 B, 授权公告日 2022-12-07.
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