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发明人刘建华,沈红梅,钱学锋. "A Process for Preparing High-Purity methyl 7-amino-5-methyl-1,8-naphthyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110639187 A, 授权公告日 2016-07-23.
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