发明人沈红梅,刘建华,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109003331 A, 授权公告日 2017-06-04.
发明人徐明华,陈志强,韩伟. "Method for the Synthesis of N-Benzyl-1-(3-ethoxypropyl)-2-imino-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 114706043 B, 授权公告日 2018-06-04.
发明人郑宇鹏,朱建伟,孙丽萍. "A Process for Preparing High-Purity N-Benzyl-1-(3-ethoxypropyl)-2-imino-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 115840740 A, 授权公告日 2025-07-27.
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