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发明人钱学锋,李文辉,孙丽萍. "A Process for Preparing High-Purity 5-(2-Bromo-5-fluorophenyl)-1,3,4-oxadiazol-2-amine" [P]. 中国发明专利, 专利号 CN 116013461 B, 授权公告日 2022-07-08.
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