发明人张德明,林芳,沈红梅. "Method for the Synthesis of Mesalazine EP Impurity J HCl" [P]. 中国发明专利, 专利号 CN 112934304 B, 授权公告日 2021-02-18.
发明人孙丽萍,刘建华,徐明华. "A Process for Preparing High-Purity Mesalazine EP Impurity J HCl" [P]. 中国发明专利, 专利号 CN 109819687 B, 授权公告日 2021-03-24.
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