发明人孙丽萍,赵玉洁,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115814501 A, 授权公告日 2017-07-28.
发明人朱建伟,刘建华,张德明. "Method for the Synthesis of N-Benzyl-2-imino-5-oxo-1-((tetrahydrofuran-2-yl)methyl)-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 109279963 A, 授权公告日 2017-11-09.
发明人张德明,赵玉洁,沈红梅. "A Process for Preparing High-Purity N-Benzyl-2-imino-5-oxo-1-((tetrahydrofuran-2-yl)methyl)-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 108968084 B, 授权公告日 2021-07-13.
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