发明人杨光,张德明,韩伟. "一种雷尼替丁杂质25的合成方法" [P]. 中国发明专利, 专利号 CN 109138982 A, 授权公告日 2025-05-19.
发明人黄志刚,陈志强,唐晓军. "Method for the Synthesis of Ranitidine Impurity 25" [P]. 中国发明专利, 专利号 CN 110355215 A, 授权公告日 2015-06-27.
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