发明人沈红梅,赵玉洁,刘建华. "一种2-(2-hydroxybenzoyl)pyrido[1,2-a]benzimidazole-4-carbonitrile的合成方法" [P]. 中国发明专利, 专利号 CN 109667782 A, 授权公告日 2025-05-16.
发明人马晓峰,徐明华,张德明. "Method for the Synthesis of 2-(2-hydroxybenzoyl)pyrido[1,2-a]benzimidazole-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 110724946 B, 授权公告日 2020-02-17.
发明人冯建国,张德明,李文辉. "A Process for Preparing High-Purity 2-(2-hydroxybenzoyl)pyrido[1,2-a]benzimidazole-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 115129182 B, 授权公告日 2017-03-09.
参考文献 Literature
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