发明人何建平,黄志刚,孙丽萍. "一种氮卓斯汀EP杂质E的合成方法" [P]. 中国发明专利, 专利号 CN 109136234 A, 授权公告日 2021-07-22.
发明人韩伟,郭海燕,林芳. "Method for the Synthesis of Azelastine EP Impurity E" [P]. 中国发明专利, 专利号 CN 113258994 B, 授权公告日 2018-03-01.
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