发明人王建平,周伟,杨光. "Method for the Synthesis of 6-Amino-5-(difluoromethyl)-2-hydroxynicotinonitrile" [P]. 中国发明专利, 专利号 CN 108171664 B, 授权公告日 2017-10-09.
发明人钱学锋,朱建伟,胡光. "A Process for Preparing High-Purity 6-Amino-5-(difluoromethyl)-2-hydroxynicotinonitrile" [P]. 中国发明专利, 专利号 CN 111465375 B, 授权公告日 2016-05-21.
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