发明人罗永刚,黄志刚,赵玉洁. "Method for the Synthesis of N-(6-((2-Oxo-2-((thiophen-2-ylmethyl)amino)ethyl)thio)pyridazin-3-yl)propionamide" [P]. 中国发明专利, 专利号 CN 111267559 B, 授权公告日 2019-08-05.
发明人朱建伟,孙丽萍,罗永刚. "A Process for Preparing High-Purity N-(6-((2-Oxo-2-((thiophen-2-ylmethyl)amino)ethyl)thio)pyridazin-3-yl)propionamide" [P]. 中国发明专利, 专利号 CN 111041521 A, 授权公告日 2017-06-07.
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