发明人韩伟,钱学锋,高志强. "一种依匹斯汀EP杂质A(盐酸盐)的合成方法" [P]. 中国发明专利, 专利号 CN 110975141 A, 授权公告日 2017-11-11.
发明人周伟,孙丽萍,唐晓军. "Method for the Synthesis of Epinastine EP Impurity A(Hydrochloride)" [P]. 中国发明专利, 专利号 CN 117013598 A, 授权公告日 2016-01-01.
发明人赵玉洁,陈志强,黄志刚. "A Process for Preparing High-Purity Epinastine EP Impurity A(Hydrochloride)" [P]. 中国发明专利, 专利号 CN 108669078 B, 授权公告日 2018-12-21.
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