发明人张德明,刘建华,李文辉. "Method for the Synthesis of Olopatadine Impurity 25" [P]. 中国发明专利, 专利号 CN 117014696 B, 授权公告日 2024-06-16.
发明人胡光,陈志强,朱建伟. "A Process for Preparing High-Purity Olopatadine Impurity 25" [P]. 中国发明专利, 专利号 CN 111726566 B, 授权公告日 2015-02-25.
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