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发明人韩伟,陈志强,郭海燕. "Method for the Synthesis of Methyl 2-((3-(2-(4-methoxybenzamido)ethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)butanoate" [P]. 中国发明专利, 专利号 CN 115847920 B, 授权公告日 2020-06-02.
发明人胡光,刘建华,赵玉洁. "A Process for Preparing High-Purity Methyl 2-((3-(2-(4-methoxybenzamido)ethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)butanoate" [P]. 中国发明专利, 专利号 CN 115457008 A, 授权公告日 2022-01-15.
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