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发明人张德明,徐明华,钱学锋. "Method for the Synthesis of N-isopropyl-5-oxo-2-(trifluoromethyl)-5H-chromeno[2,3-b]pyridine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 115647959 B, 授权公告日 2017-06-07.
发明人朱建伟,罗永刚,郭海燕. "A Process for Preparing High-Purity N-isopropyl-5-oxo-2-(trifluoromethyl)-5H-chromeno[2,3-b]pyridine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 109332411 A, 授权公告日 2021-12-07.
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