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发明人冯建国,郭海燕,张德明. "A Process for Preparing High-Purity 6-((2-Bromophenyl)amino)-2,3-dihydroindolizin-5(1H)-one" [P]. 中国发明专利, 专利号 CN 114234662 B, 授权公告日 2022-05-14.
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