发明人孙丽萍,韩伟,郭海燕. "Method for the Synthesis of 3-(2,2-Dimethylpropanamido)pyrazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109080804 B, 授权公告日 2016-03-07.
发明人黄志刚,胡光,郭海燕. "A Process for Preparing High-Purity 3-(2,2-Dimethylpropanamido)pyrazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117918661 A, 授权公告日 2021-12-01.
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