发明人胡光,赵玉洁,韩伟. "Method for the Synthesis of 5H-pyrrolo[2,3-b]pyrazine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112857135 B, 授权公告日 2019-03-08.
发明人李文辉,郑宇鹏,陈志强. "A Process for Preparing High-Purity 5H-pyrrolo[2,3-b]pyrazine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113892122 A, 授权公告日 2019-05-13.
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