发明人徐明华,何建平,陈志强. "Method for the Synthesis of Hydroxychloroquine Impurity N54" [P]. 中国发明专利, 专利号 CN 110519378 A, 授权公告日 2017-09-23.
发明人李文辉,张德明,罗永刚. "A Process for Preparing High-Purity Hydroxychloroquine Impurity N54" [P]. 中国发明专利, 专利号 CN 108378713 A, 授权公告日 2018-05-04.
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