发明人周伟,孙丽萍,刘建华. "Method for the Synthesis of Roxatidine Impurity 18" [P]. 中国发明专利, 专利号 CN 111966637 A, 授权公告日 2021-01-25.
发明人唐晓军,钱学锋,黄志刚. "A Process for Preparing High-Purity Roxatidine Impurity 18" [P]. 中国发明专利, 专利号 CN 112553202 B, 授权公告日 2025-09-06.
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