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发明人韩伟,徐明华,郑宇鹏. "A Process for Preparing High-Purity 3-(Prop-2-yn-1-ylamino)pyrazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116688996 A, 授权公告日 2015-12-15.
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