发明人郭海燕,陈志强,赵玉洁. "一种替扎尼定EP杂质B的合成方法" [P]. 中国发明专利, 专利号 CN 117548740 A, 授权公告日 2017-02-25.
发明人周伟,黄志刚,高志强. "Method for the Synthesis of Tizanidine EP Impurity B" [P]. 中国发明专利, 专利号 CN 112315011 A, 授权公告日 2018-05-24.
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