发明人郭海燕,徐明华,何建平. "一种罗沙司他杂质36的合成方法" [P]. 中国发明专利, 专利号 CN 113015732 A, 授权公告日 2024-03-28.
发明人黄志刚,罗永刚,刘建华. "Method for the Synthesis of Roxadustat Impurity 36" [P]. 中国发明专利, 专利号 CN 113149215 B, 授权公告日 2023-04-24.
发明人徐明华,何建平,杨光. "A Process for Preparing High-Purity Roxadustat Impurity 36" [P]. 中国发明专利, 专利号 CN 109375014 A, 授权公告日 2021-11-03.
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