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发明人马晓峰,赵玉洁,冯建国. "Method for the Synthesis of 2-Amino-6-(hydroxymethyl)-8-oxo-4-(2-(trifluoromethyl)phenyl)-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 111569036 B, 授权公告日 2023-05-12.
发明人黄志刚,周伟,王建平. "A Process for Preparing High-Purity 2-Amino-6-(hydroxymethyl)-8-oxo-4-(2-(trifluoromethyl)phenyl)-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 117826638 B, 授权公告日 2016-04-23.
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