发明人赵玉洁,韩伟,郑宇鹏. "Method for the Synthesis of 2-(2-Hydroxyethoxy)nicotinonitrile" [P]. 中国发明专利, 专利号 CN 111662203 A, 授权公告日 2015-11-07.
发明人郭海燕,徐明华,周伟. "A Process for Preparing High-Purity 2-(2-Hydroxyethoxy)nicotinonitrile" [P]. 中国发明专利, 专利号 CN 108795900 B, 授权公告日 2016-02-06.
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