发明人张德明,李文辉,沈红梅. "Method for the Synthesis of 5,6-Diamino-8-(diethylamino)-2-ethyl-1,2-dihydrofuro[2,3-c][2,7]naphthyridine-9-carbonitrile" [P]. 中国发明专利, 专利号 CN 110584290 B, 授权公告日 2023-01-01.
发明人胡光,冯建国,郭海燕. "A Process for Preparing High-Purity 5,6-Diamino-8-(diethylamino)-2-ethyl-1,2-dihydrofuro[2,3-c][2,7]naphthyridine-9-carbonitrile" [P]. 中国发明专利, 专利号 CN 108555552 B, 授权公告日 2025-08-21.
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