发明人郭海燕,朱建伟,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108514709 A, 授权公告日 2021-01-23.
发明人沈红梅,钱学锋,何建平. "Method for the Synthesis of Ethyl 4-hydroxy-7-methyl-2-oxo-1-(prop-2-yn-1-yl)-1,2-dihydro-1,8-naphthyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 108535474 A, 授权公告日 2019-11-06.
发明人徐明华,张德明,沈红梅. "A Process for Preparing High-Purity Ethyl 4-hydroxy-7-methyl-2-oxo-1-(prop-2-yn-1-yl)-1,2-dihydro-1,8-naphthyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 115069725 A, 授权公告日 2023-02-23.
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