发明人李文辉,钱学锋,杨光. "Method for the Synthesis of 2-(1h-Benzo[d]imidazol-2-yl)-4-chloro-5-(piperazin-1-yl)pyridazin-3(2h)-one" [P]. 中国发明专利, 专利号 CN 114443514 A, 授权公告日 2018-04-26.
发明人郭海燕,韩伟,郑宇鹏. "A Process for Preparing High-Purity 2-(1h-Benzo[d]imidazol-2-yl)-4-chloro-5-(piperazin-1-yl)pyridazin-3(2h)-one" [P]. 中国发明专利, 专利号 CN 110025592 A, 授权公告日 2023-01-14.
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