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发明人刘建华,沈红梅,唐晓军. "A Process for Preparing High-Purity 4-Ethyl-2-((3-methoxypropyl)amino)pyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112703713 A, 授权公告日 2023-07-21.
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