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发明人林芳,韩伟,朱建伟. "A Process for Preparing High-Purity 7-Chloro-5-((3-methyl-1H-indol-7-yl)amino)pyrido[3,4-d]pyridazin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 109198454 B, 授权公告日 2019-02-01.
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