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发明人李文辉,罗永刚,孙丽萍. "Method for the Synthesis of 2-Amino-7-isopropyl-5-oxo-5H-chromeno[2,3-b]pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 109513231 B, 授权公告日 2022-07-02.
发明人韩伟,郑宇鹏,胡光. "A Process for Preparing High-Purity 2-Amino-7-isopropyl-5-oxo-5H-chromeno[2,3-b]pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 109082318 A, 授权公告日 2020-02-24.
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