发明人张德明,孙丽萍,徐明华. "一种呋喃并[2,3-b]吡啶-3-羧酸的合成方法" [P]. 中国发明专利, 专利号 CN 110017632 A, 授权公告日 2021-08-14.
发明人罗永刚,胡光,郭海燕. "Method for the Synthesis of Furo[2,3-b]pyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109794600 B, 授权公告日 2022-10-13.
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