发明人郭海燕,韩伟,沈红梅. "Method for the Synthesis of Indobufen Impurity 56" [P]. 中国发明专利, 专利号 CN 115803766 A, 授权公告日 2021-08-14.
发明人黄志刚,冯建国,李文辉. "A Process for Preparing High-Purity Indobufen Impurity 56" [P]. 中国发明专利, 专利号 CN 114675765 A, 授权公告日 2019-10-19.
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