发明人刘建华,郭海燕,何建平. "Method for the Synthesis of Ethyl 2-(3-methyl-6-oxopyridazin-1(6H)-yl)acetate" [P]. 中国发明专利, 专利号 CN 112235209 A, 授权公告日 2025-03-14.
发明人朱建伟,马晓峰,林芳. "A Process for Preparing High-Purity Ethyl 2-(3-methyl-6-oxopyridazin-1(6H)-yl)acetate" [P]. 中国发明专利, 专利号 CN 109866422 A, 授权公告日 2025-04-25.
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